Must List 2009: Music

EW.COM POLL
What is summer's Must music reunion?

56% No Doubt
20% blink-182
9% Creed
8% Faith No More
7% Blur

Kid Cudi
Must Rapper

AGE
25
WHY HIM
The Kanye protégé's beyond-catchy ''Day 'N' Nite'' is a smash. ''It's been a roller coaster,'' says the new star. ''It's a little intense. But I love the love!''
NEXT
His debut CD, The Man on the Moon: End of Day, is scheduled for fall.
ON HIS MUST LIST
Animal Collective.

Grizzly Bear
Must Breakout

WHY THEM
Years of mounting buzz culminated in the blissful Veckatimest, which debuted at No. 8 on the Billboard 200. ''It's hard to conceive of what that even means,'' says the band's Daniel Rossen. ''But it's amazing!''
NEXT
A tour continues through July 19.
ON ROSSEN'S MUST LISTDirty Projectors' eclectic art-rock suite Bitte Orca.

Beyoncé
Must Live Act

Three reasons to catch her tour this summer.
1. You may have seen Justin Timberlake's and Joe Jonas' leotarded tributes to the now legendary ''Single Ladies (Put a Ring on It)'' video, but on stage you'll get the real booty-rocking deal.
2. Beyoncé has spent eight months working on the show, and from her all-girl backing band and outrageous Thierry Mugler costumes to the Destiny's Child medley and bring-down-the-house take on Etta James' ''At Last,'' it's major.
3. Even Sasha Fierce understands an economic downturn, so 2,000 seats at every North American date will be available for a bargain $20 — though you may want to splurge and head to Sin City for the tour's U.S. finale, a four-day run at Las Vegas' intimate Encore Theatre at the Wynn.

Brad Paisley
Must Country Crooner

AGE
36
WHY HIM
Paisley's American Saturday Night (out June 30) finds the country superstar embracing a more emotional style. ''I feel like I'm in open-heart surgery on the Health Channel,'' he jokes. ''The new frontier for me is digging in and saying, 'I mean it.'''
FUTURE SHOCK
Next single ''Welcome to the Future'' is a hope-fueled anthem ending with a nod to Obama's election. Paisley calls it ''my favorite thing I've ever put on tape. I had a hard time singing that in the studio. The first time, I had to lean against the wall for a second.''
NEXT
He's on the road until Oct. 17.
ON HIS MUST LIST
Theoretical physicist Paul Davies' book The Mind of God.