Rocker also discusses his new memoir, digital music format
'We believe in his vision,' Beyonce says at New York fundraiser
Singer asks Russian president to think of captive musicians' childen
Rocker belts out new track with just an acoustic guitar
Re-working of song results in 'smooth and delicious cocktail'
Comedian Will Forte officiates Nashville ceremony
Includes Penn Badgley's rendition of 'Once I Was'
'How we gonna feud in two days?' Carey quips at press conference
Jon Hamm, Jon Wurster star in shot-for-shot re-creation of 'Til Tuesday's 'Voices Carry' video
'I'm dreaming of a white president,' goes the song's Irving Berlin reference
The Rumble in the Air Conditioned Auditorium set for October 6th
Rapper performs her party anthem surrounded by fly girls
Director joins band to explore Las Vegas, surrounding environs