Led Zeppelin was nominated for "Best New Artist" in 1970. They lost to Crosby, Stills & Nash. The band never actually won a Grammy.
Celebration Day, the band's live album from their 2007 reunion concert, won the Grammy for Best Rock Album on Sunday afternoon.
The group did get recognized with a "Lifetime Achievement Award" in 2005.
The band is also nominated for "Best Rock Performance" for Kashmir from Celebration Day.