Idol's first album in over 10 years, 'Dream Into It', was released last week
Oasis, Phish, Mariah Carey, Joy Division/New Order and more did not make the cut this year
The winners of the fan vote were also announced earlier today
The singer said he's "excited" for the band, but "totally understands" the ex-frontman's response
Barrymore went on to add that Idol "really pushed through and changed the world"
Watch the music video for its first single (and closing track) 'Still Dancing'
The one-off show takes place the day before this year's Glastonbury kicks off...
Soundgarden, Billy Idol, Joe Cocker and more are also nominated
He performed 'More Than Words,' 'Toys in the Attic' and 'Dream On'
They have announced 30 shows together between April and September