Ke$ha, Adele and others will be covering Bob Dylan on album

ALL-Stars Tackle Dylan For Amnesty International

Basically this song will be coming out on November 22nd with huge artists singing a Bob Dylan song.

My Morning Jacket : You're A Big Girl Now
Adele: Make You Feel My Love
Ke$ha: Don't Think Twice, It's All Right

Ke$ha has already expressed her love for Bob Dylan. One of her favorite album is Bob Dylan's own Nashville Skyline. She also talks about how emotional she got singing the song in the link above.