"It has been my honor being her mom and best friend"
Sir Elton will play piano on Cyrus' cover of 'Nothing Else Matters'
Her latest album 'Plastic Hearts' only arrived back in November
Cyrus also performed new track 'Prisoner' and her 2009 single 'Party In The U.S.A.'
The rapper allegedly tried to sell the pair's collaboration for $350
Joining a lineup of Jennifer Lopez, Nelly and more
Tyler said hearing the cover "honestly made my day"
The performance was minus Dua, but contained a host of green screen magic
Love said the song was written in just 20 minutes
"I think people are starting to go, 'Wait, wait, wait. That was fucked up'"