'Full Frontal' host dissects administration's willful, nefarious mangling of the English language
David Letterman's former bandleader partners with Jon Batiste and Stay Human, Valerie Simpson for "Ain't No Mountain High Enough"
Wilco's lead singer performs 'I Am Trying to Break Your Heart" unaccompanied to preview upcoming solo album 'Together at Last'
Singer also talks escaping celebrity life by returning to New Zealand, being freaked out by 'Twin Peaks'
'Malibu' singer also talks fear of dying mid-monologue from smoking too much weed, 'hillbilly' family vacations, taking on 'Voice' coach Blake Shelton
Pop star delivers remarkable vocal renditions of two new country-tinged songs during 'Tonight Show' takeover
Comedian revived 'SNL' impersonation for riff on Attorney General's Senate Intelligence Committee hearing, poked fun of Sessions' turtle-like mouth
Former One Direction singer, 'Tonight Show' host teamed to tackle "Witness the Fitness," "Quickly Clicky Pens," "Stepping on Toes"
"He never really badmouthed anybody," says director on Russian president. "He's been through a lot. He's been insulted and abused"
Folk-rock ballad appears on singer's self-titled solo LP
Seductive track highlights new duets album from Fleetwood Mac duo
Host recreates Jarvis Cocker's studio part in 'Late Show' performance of 'Pleasure' track
"If it's on my Wikipedia, it's fair game," Hole singer said of planned book on 'Late Night With Seth Meyers'
'Divide' singer joined James Corden for acoustic, behind-the-wheel setlist featuring tracks from latest LP, 'Divide'
Heartland-rock track highlights singer-songwriter's recent 'Prisoner' LP