Guitarist swaps licks on 'Champagne & Reefer,' singer helps on 'Gimme Shelter'
Guests will join rockers onstage at November 29th concert
'Late Night' host revives his oil spill protest song with Welch and Co.
A peek at the artists who will be emulated on the runways
Singer recovered from vocal cord injury, Florence and the Machine kick off their North American tour
Singer back in action a week after ailment that caused her to miss two shows
Florence Welch tweets that she has lost her voice
Festival season kicks off with superstar DJs, indie icons and rap giants
Gospel rockers perform 'No Light, No Light'
Gospel rockers struggle with awkward pacing, strange lighting
Erykah Badu, Jill Scott, Florence Welch, Chaka Khan and more perform in New York City
Katy Perry's 'SNL' parody, meeting Billie Joe Armstrong among highlights, she says at KROQ concert
See the Black Keys, Blink-182, Bush and more – onstage and off
How the arty, ethereal singer became the Stevie Nicks of the 'Twilight' generation