As the last reality show of "Rock Star:INXS" begins, the prize is on everyone's minds. "It's a big deal," Marty says. It's also a time of last things: last clinic, last meal and last night to party and blow off some steam. The competition started with 15 Rockers, and now it's time for the final three to pack up and either move on to their dream of being the lead singer for INXS or go home.

At the Mansion, after last week's elimination, the Rockers toast each other for reaching the status of the "top three." But the mood around the Mansion has changed. Suzie is gone, and as Marty tells J.D. and MiG, she's taken "her honesty and laughter" with her. All that male energy, Marty notes, will surely make things a little more competitive.

The three remaining Rockers take a moment to size each other up. MiG views Marty as his major threat: "he's gone from strength to strength to strength." J.D. worries MiG less -- he thinks J.D. has a "dangerous element" that INXS might want to avoid.

Marty's assessment of J.D. is that J.D.'s come up in the last few weeks, but his inconsistency makes Marty unsure which J.D. will show up at the finale. Marty didn't expect to have to contend with MiG, but he now sees MiG as the man to beat. Marty was sure MiG was going home last week and suspects that MiG's presence in the bottom three might have even been a strategic move.

J.D. thinks both MiG and Marty are taking the wrong tack. "They both are going in with guns a-blazing," he says. The better strategy, he says, is "in like a lion, out like a lamb."

Before it all gets too out of hand, Dave arrives with news of this week's clinic. The three finalists will each collaborate individually with Andrew on a brand new song. Dave gives each Rocker a Dell DJ Ditty MP3 player loaded with a song Andrew has written for the upcoming collaborations.

The way each Rocker reacts to this challenge gives further hints into their personalities. Marty immediately gets to work. This clinic is "a true test of what INXS needs to see from you," he says. "You have to be prepared."

MiG is excited and a little intimidated at the prospect of working with Andrew, whom he calls a "genius." And if you can't collaborate with Andrew, MiG says, "count yourself out of the competition."

J.D., who could be said to have a leg up on his competition, since he's the only Rocker who has already co-written a song with Andrew, takes a more sanguine view of things. "Rock and Roll shouldn't be over thought," he says. "Rock and Roll is in the holes."

The next day, after weeks of being chauffeured around Los Angeles, they each receive a new Honda Civic for making it into the final three, and drive themselves to the Gibson guitar showroom for the clinic. Once there, Marty feels the pressure of this clinic, so when he shows up to his meeting with Andrew, he's all business. Before Marty's even fully settled in his chair, he's telling Andrew "here's what I thought the song was." His strategy, he explains, was to "spark some inspiration" between them, and it seems to have worked. Andrew is blown away. "Right from the word 'go,'" he says, "Marty came in with a chorus that was virtually correct in every sense that I could think of." He was also "stunned" at the lyric Marty put together.

Andrew is also "pleasantly surprised" by MiG. He's impressed with the effort MiG put into the song. He compliments MiG on the melody he's created, but when he suggests making the last line of the song "a little darker," MiG freezes. "MiG likes to take the sweet route in melody and harmony," Andrew says. Andrew's just "not sure if that's exactly where INXS would want to go." Once MiG shakes off the shock, he works well with Andrew. In the end, Andrew's impressed with MiG's "strong sense of his songwriting identity."

J.D. approached this clinic in an opposite manner from MiG and Marty. Where the other two Rockers showed up with one fully fleshed-out idea, J.D. came armed with a bunch of sketches and fragmentary lyrics he wanted to bounce off Andrew. J.D. "thinks quickly and outside of the square," Andrew says, but wishes J.D. had spent more time developing his ideas. He could use some of Marty's discipline, Andrew says. "Instead of thinking or feeling it, he needs to write it." But their collaboration goes smoothly, and they embrace when the session ends.

When the three Rockers get back to the Mansion, they enter the billiard room to see a solitary envelope on the bulletin board. It contains a note from INXS congratulating them for making the final three. It also informs them that for the final show, they each must pick the one song from all the songs performed this season that best shows what they have to offer INXS.

With all the songs laid out on the floor before them, the three of them decide that they can put a hold on the songs they want. Marty quickly makes a strategic move and grabs "Pretty Vegas," keeping J.D. from his most popular song. J.D. decides on the Rolling Stones' "You Can't Always Get What You Want." The song was a showstopper for Ty a few weeks ago, but J.D. has a personal reason for wanting this tune: It's the song he's requested to be played at his funeral (along with another Stones classic, "Sympathy For The Devil").

J.D. doesn't want to repeat himself: "I'm here to progress, not regress," he says. Marty ends up deciding to reprise his performance of Pink Floyd's "Wish You Were Here," because it's the song with which he found a new voice. MiG's instinct is to take Queen's "Bohemian Rhapsody," but he's not sure it's the right move. Privately, Marty says that for MiG, singing that song would be a "shaky decision." It would send the wrong message if he's trying to show INXS that he's moved on from being the lead in a Queen musical. But when MiG asks for advice, with a straight face, Marty tells him, "Go for it."

Whose strategy will serve them best in the finale? J.D. says he wants "You Can't Always Get What You Want" played at his funeral -- could singing it start off his new life as the lead singer for INXS? Will MiG's choice to sing Queen work against him? Is Marty right in taking the safe route, singing a song he knows works for him?

To find out, don't miss the season finale of "Rock Star:INXS" Tuesday at 10 p.m. (ET/PT) on CBS.