Jack Osbourne

Stars from Adele to Miley Cyrus to Demi Lovato can't help but flip the bird when they've had enough.

Sad news... Jack Osbourne announced that he's been diagnosed with MS. He found out two weeks after his fiancée had their first child, a daughter named Pearl Clementine. He's "been diagnosed with relapsing, remitting multiple sclerosis—the most common, but least aggr…