On tonight's "Rock Star:INXS," not only will the Rockers be singing some of the greatest rock and roll songs ever written, they'll also be accompanied by the biggest band ever to grace the "Rock Star:INXS" stage. In addition to the House Band (whose playing is, as usual, superb), there are strings, horns, a giant gong and a 23-person choir from Brookins AME Church. Just to add to the excitement, several Rockers have an extra incentive to put on a great show tonight: Ty, Jordis and Marty have family in the audience cheering them on.

But before the Rockers take the stage, INXS and Dave have some questions for them about this week's studio session, where they all laid down vocals for a new INXS song. The first questions are for J.D. Everyone is puzzled as to why the Rocker who has been loudest and most emphatic in proclaiming his love of INXS would be so lackadaisical when given the chance to sing a new INXS song. J.D. has his reasons: He didn't want to put his own interpretation on the song and was hoping the band would tell him what they wanted. Everyone is a little perplexed by this -- he could have at least memorized the words. But MiG comes to J.D.'s defense. There's a method to his madness, MiG says, and it shouldn't be knocked until you've heard the final product.

The questions for Jordis take almost the opposite tack. If J.D. seemed underprepared, Jordis might have overthought the song, and INXS wants to know why she changed the melody. She says that she thought interpretation was part of the challenge so she tried to make the song her own. Andrew (who wrote the song) tells her this would have been fine had they been collaborating on the song, but in this case, she should have performed the melody as written.

When it's his turn to talk, Marty tells INXS that being in the studio with them was a real learning experience. After one "pretty terrible" take, Andrew suggested a change of key and, by doing this, Marty started to sing the song more gently, resulting in a voice Dave says we haven't heard from him yet.

And, with that, the performances begin. Ty starts the night off with The Rolling Stones' "You Can't Always Get What You Want." After ending up in the bottom three last week, Ty takes the song's optimistic lyrics as his mantra, and the song's mixture of gospel and rock plays right into his strengths. His vocal takes inspiration from Sam Cooke, one of the first singers to cross over from gospel onto the pop charts and a singer whose influence can be heard in today's music through the voices of Usher, Prince and R. Kelly. It's an intense performance that nearly leaves Dave and the band speechless. Dave pronounces it "spot on," while Garry can only call it "awesome," a comment echoed by Jon, who also compliments Ty on his red and black stage outfit.

J.D. takes the stage next. He was an Elvis impersonator for a few years and said he chose his song, Presley's last No. 1 single, "Suspicious Minds," to gain closure on that chapter in his life. Oddly enough, his performance has nary a trace of the King in it. A little gruff at the start, J.D. never seems to really engage with the song -- when the House Band ratchets up the beat, he sounds a little winded. Only at the end, when he pauses, shrugs and sneers, does he really seem to catch the essence of the original. Jon wonders, given his past, why J.D. would choose an Elvis song. Andrew doesn't care why he chose it, only that it's a "passionate version of a great song." Dave likes what he heard but isn't sure it will elevate J.D. in the competition.

After finding himself in the bottom three last week, Marty sees the chance to perform Pink Floyd's "Wish You Were Here" as a way to get out of the grave. It's also a perfect song for him at this juncture. It's not an especially rangy tune -- it covers less than an octave -- and the lyric's emotions, which look back at a past relationship more in sadness and resignation than in anger, keep him from pushing his voice into a scream. Also, the tune's subject matter, a remembrance of a departed band member, in this case Floyd's original frontman and songwriter, Syd Barrett, should find resonance with INXS. Marty's pitching is a little off, but he nails the song's emotions, with a beautifully phrased and delivered vocal. And he calls singing with the strings, horns and choir "one of the greatest moments in my life." Dave and INXS agree. Dave likes that he sang with a smoothness and ease he hasn't displayed before, and Kirk enjoys hearing the softer side of Marty's voice. For Garry, his performance is a perfect example that less is more.

That last comment is advice Jordis might want to take. Adding her own guitar accompaniment to the strings, horns, choir and the House Band clutters an already busy arrangement on a song that's a paragon of simplicity -- John Lennon's "Imagine." Again, it's a lovely vocal, but Jordis turns the song soft and sentimental. She's not alone in this -- almost every singer who attempts the song makes the same mistake, concentrating on the one-world dreaminess and forgetting Lennon's withering cynicism, which keeps the song honest. Dave and INXS love it. Dave sees it as a return to form -- a performance by the singer he loves. Kirk calls it "spellbinding," while Jon says he had to fight not to cry.

MiG chose Paul McCartney's "Live and Let Die" instead of Queen's "Bohemian Rhapsody" because he wants to move forward and challenge himself; he's not here to re-audition for "We Will Rock You." But his performance of the James Bond movie theme is one of his oddest performances, manically toggling between verses that look toward McCartney's original and choruses that take their cues from the Guns n' Roses cover. He ends the song with a scream that displays power and stamina. Dave jokes that the scream was so long, he was in his teens when it started. Tim compliments MiG for taking a chance with this song, calling it a smart move that paid off. Kirk calls it "massive" but wonders why MiG was singing over the song's multiple instrumental passages.

Suzie ends this epic evening in high style, singing Queen's equally epic "Bohemian Rhapsody." It's a song she wanted to sing more than any other in the competition -- one she knows, if done right, will keep her out of the bottom three. It's quite a task to take on. Not only does the song move all over the scale in its melody, it demands whoever sings it move from the quiet, pretty, almost rueful opening passages to the penultimate section's nearly screamed anger. Suzie manages to hit it all -- the notes and the emotions -- and do it in joyous, dramatic fashion. Dave says it's spectacular, Kirk thinks it's the best performance he's heard on the show and Jon calls her a true pro -- he's proud that she wants to be a part of INXS.

And here's where your part comes in. Vote. It's a tough choice this week, and with only six Rockers, half of them will be vulnerable. To find out who will leave this week, check out the special hour-long elimination show Wednesday at 9PM (ET/PT) on CBS.