Teen Choice 2007What: Hilary Duff and Nick Cannon host the annual extravaganza
When: Aug. 26, 8 p.m. on FOX
Highlights: From Zac Efron and the rest of his High School Musical 2 cast to Avril Lavigne (who performs along with Fergie and Kelly Clarkson, this ceremony promises the biggest night for the 20-and-under crowd. (Well, besides prom!)
Arthur Ashe Kids DayWhat: The U.S. Open gets ready to kick off with this family-friendly tennis and music event
When: Aug. 25
Highlights: All the tennis greats (Andy Roddick and Serena Williams) will be there, but so will rapper Lil Mama and the Jonas Brothers, who are set to perform.
Dancing with the Stars Cast AnnouncementWhat: Judge Carrie Ann Inaba and last year's winner Apolo Ohno reveal who will be joining the fifth season
When: Aug. 29 on ABC's Good Morning America
Highlights: The rumors are flying, but Vegas crooner Wayne Newton is already tipped to join the cast when season 5 revs up on Sept. 24. So, who will be joining him? Tune in to find out.
LifelineWhat: The long-awaited new album by Ben Harper & the Innocent Criminals
When: In stores Aug. 28
Highlights: PEOPLE's critic Chuck Arnold raves about Harper's stripped down disc. "The sound and the songs grab you with their immediacy and intimacy; you feel like Harper is right there strumming in your living room," he writes.