At age 15, Montreal native Alain "DJ A-Trak" Macklovitch set records while scratching them as the youngest to win the DMC World DJ Competition. Now 25, A-Trak holds down the 1's and 2's on a much bigger stage as tour DJ for Kanye West. Not that the success has gone to his head-A-Trak remains the same affable kid from his teenage battling days, which are chronicled on his new DVD, Sunglasses Is A Must. We rolled with A-Trak as he prepped for a show with Mr. West in Hollywood.

4:31 p.m.
A-Trak and a bevy of orchestra
beauties sound-check Kanye's "Touch The Sky" and "Gold Digger" for a pre-Grammy performance at Avalon in Hollywood. A-Trak has been Kanye's DJ for almost two years, so the routine has become, well, routine. To spice things up, A-Trak cues up farm-animal sound effects for laughs. While the ladies in the string section giggle, the stressed-out road manager is less amused. "That's how you get through sound check," says A-Trak later. "It's kind of like being the band leader."

5 p.m.
A-Trak slides on his all-access
wristband. "Look-no overlap, no hairs caught," he says in his loopy French-Canadian accent. "You have
to treasure these moments."

5:20 p.m.
A-Trak goes backstage to shave, even though he still looks like he'd get carded at an R-rated movie. "The touring stuff keeps me busy full-time, but I'm trying to do my own stuff with my DVD and my solo project," he says, drying off his face. "I even had to take time off of school." A-Trak is a biology major at McGill University.

6:05 p.m.
Freshly shaven, A-Trak dips from the venue to Samy's Camera, where he drops about $1,400 on the sleek Canon Optura 600. "I'm going to document the whole tour experience," he says, brimming with excitement.
"I mean, we're doing the Grammys!"

6:34 p.m.
At the Mondrian Hotel on Sunset, A-Trak's Nike Vandals and Stüssy shirt don't quite blend in with the low-cut blouses of the L.A. socialites milling about. But while these girls are out to be seen, A-Trak is the scene. Walking through the lobby, he's greeted warmly by music industry folks in town
for the Grammys. "I've been in the underground scene for years, playing for 500 people a show. But now, I play for 5,000 people," says A-Trak as he heads up to his room.

7:02 p.m.
A-Trak checks his MySpace account and catches up on email. Browsing through his digital photos, he pulls up a picture of himself with Juicy J of Three 6 Mafia. "I really like these guys," says A-Trak. "We went through Memphis on the Touch the Sky tour and I was like, man, I want to go back and spend a week there."

8:17 p.m.
A-Trak surveys the artwork for his DVD. "I got the name from this graf writer I used to know. He used to say that ‘sunglasses is a must,'" says A-Trak. "At the time I named the project, I didn't even own any sunglasses."

10:47 p.m.
Back at Avalon, it's showtime. A-Trak steps onstage rocking a G.O.O.D. Music shirt and a pair of aviators. Yep, sunglasses is a must. With Jay-Z and Paris Hilton looking on, A-Trak rocks the tables for Kanye and surprise guests Talib Kweli and John Legend.

12:32 a.m.
After the show, A-Trak mingles with Hollywood honeys and poses with Tom Cruise, who is clearly hyped on his skills. "I'm like the ambassador between the scratch culture and the other audience," says A-Trak. If only the backpackers could see him now.