SAN FRANCISCO (KGO) -- Thousands of people packed San Francisco's Civic Center area this weekend to see their favorite comedians and musicians at Clusterfest.
The Lonely Island, T-Pain, and Michael Bolton were among the musicians who delivered epic high-energy sets.
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Click here for more information about the festival.
The Lonely Island is seen performing with T-Pain at Clusterfest in San Francisco, Calif. on June 1, 2018. (KGO-TV)
T-Pain is seen performing at Clusterfest in San Francisco, Calif. on June 1, 2018. (KGO-TV)
The Wu-Tang Clan is seen performing at Clusterfest in San Francisco on Sunday, June 5, 2018. (KGO-TV)
The Lonely Island is seen performing with Michael Bolton at Clusterfest in San Francisco, Calif. on June 1, 2018. (KGO-TV)
A crowd watches music performances at Clusterfest in San Francisco, Calif. on June 1, 2018. (KGO-TV)
The Lonely Island is seen performing at Clusterfest in San Francisco, Calif. on June 1, 2018. (KGO-TV)
Michael Bolton performs at Clusterfest in San Francisco, Calif. on June 1, 2018. (KGO-TV)
The Lonely Island is seen performing with T-Pain at Clusterfest in San Francisco, Calif. on June 1, 2018. (KGO-TV)
A crowd of people smile as they watch music performances at Clusterfest in San Francisco, Calif. on June 2, 2018. (KGO-TV)
Jon Stewart is seen at Clusterfest in San Francisco on Sunday, June 5, 2018. (KGO-TV)
A crowd of people smile as they watch music performances at Clusterfest in San Francisco, Calif. on June 1, 2018. (KGO-TV)
Jon Stewart is seen at Clusterfest in San Francisco on Sunday, June 5, 2018. (KGO-TV)
Jon Stewart is seen at Clusterfest in San Francisco on Sunday, June 5, 2018. (KGO-TV)
Comedian Jim Jeffries is seen at Clusterfest in San Francisco on Sunday, June 5, 2018. (KGO-TV)
Comedian Jeff Ross is seen at Clusterfest in San Francisco. (KGO-TV)
A man smiles during a music performance at Clusterfest in San Francisco, Calif. on June 1, 2018. (KGO-TV)