Justin Bieber
There is no denying Justin Bieber's popularity. But he would perhaps be a controversial booking, considering the rock and indie fans sounding off on Glastonbury becoming "too pop".
He is also a little out of practice, given the 'Sorry' hitmaker hasn't performed heavily since 2022, due to his struggles with the rare condition Ramsay Hunt Syndrome, which left him with facial paralysis.
Who do you think should play Glastonbury?