Jay-Z, Stevie Wonder lead Bonnaroo on day 2

Steve Martin, center, performs with the Steep Canyon Rangers during the Bonnaroo Music and Arts Festival on Friday, June 11, 2010 in Manchester, Tenn. (AP Photo/Mark Humphrey)

June 12, 2010 6:58:28 PM PDT
A slightly groggy, sun-drenched Bonnaroo crowd was readying itself for the music festival's big day-two acts: Jay-Z and Stevie Wonder.

Both were to take Bonnaroo's main stage Saturday evening in succession, with headliner Jay-Z following Wonder. The day's acts also included Weezer, Jack White's the Dead Weather, Norah Jones and a middle-of-the-night set by the jam band Disco Biscuits.

Excessive heat in the high 90s has thus far been a constant at this year's Bonnaroo, the ninth annual. Thunder clouds loomed late Saturday afternoon, threatening to further muddy the grounds, which took heavy rain on Wednesday.

Conan O'Brien performed his "Legally Prohibited from Being Funny on Television" comedy show for a second time on Saturday. And many fans took a break to watch the U.S.-England World Cup match, which was broadcast at Bonnaroo's Lunar stage.