Gnarls Barkley's deletion of Crazy means that as record shop stocks are depleted, they are no longer replaced.

BBC: NEWS | Entertainment | Thom curtails Crazy chart reign

Nelly Furtado, The Automatic and Gnarls Barkley also had re-entries with songs first released more than six months ago.

BBC: NEWS | Entertainment | HMV drops official singles chart

The Shins' latest record was long done and so were the tours, and for Danger Mouse, his band Gnarls Barkley was between records, as well.

NPR: First Listen: Broken Bells

The phenom of Gnarls Barkley was just from that one hit.

CNN: Billboard ranks decade's one-hit wonders

With his own acclaimed bands (Gnarls Barkley, Broken Bells) and his production work for others (Gorillaz, Beck, the Black Keys, lately U2), his sound has become highly sought in recent years.

WSJ: Norah Jones Acts Her Age With 'Little Broken Hearts'

Gnarls Barkley's "Crazy" was the anthem of 2006 that spilled over into 2007, but subsequent singles by the artists Cee-Lo and Dangermouse haven't made it past No. 88 on the charts, which puts them at No. 7 on the list.

CNN: Billboard ranks decade's one-hit wonders