Last I heard, the "new" Lemonheads featured leader Evan Dando on vocals and guitar, and Bill Stevenson and Karl Alaverez of The Descendents as the rhythm section. However, according to Wikipedia, drummer Josh Lattanzi (Ben Kweller) is now performing in the band.
In case you either don't know The Lemonheads, or only know them as the group that covered "Mrs. Robinson," I am posting an mp3 from their best album, Lovey. Lovey was the first Lemonheads album released on a major label (Atlantic), and the first of the Evan Dando-led version of the band. This song was released in 1990.