Lollapalooza 2011 official line-up: Eminem, Muse, Coldplay and more

After months of rumors and line-up "leaks," the official Lollapalooza 2011 line-up has been announced... and it's good. There are six headlining acts, including Eminem, Muse, Coldplay and Foo Fighters. Lollapalooza takes place from Aug. 5 -7, in Chicago, Illinois. 

Other acts include My Morning Jacket, Cee Lo Green, Bright Eyes, Flogging Molly, Lykke Li, Cage the Elephant, Arctic Monkeys, The Kills,  OK Go, Grace Potter, The Naked and Famous and many, many more.

There are a few interesting acts included on the line-up, including "Gossip Girl" actress Taylor Momsen's band The Pretty Reckless and former Fall Out Boy frontman Patrick Stump. 

Hm... Coldplay and Cee Lo Green? Could Gwyneth Paltrow make a surprise appearance? We wouldn't put it past the "Glee" guest star at this point. To buy tickets and check out the rest of the acts performing, visit the official Lollapalooza website here.