The singer challenged the actor to a "fight in the octagon" last summer
"If she ever needs me I’m going to be here for her"
Bieber's limp comeback falls flat
"For all the fans that want to enjoy the music that I make, I can’t do it if I’m not healthy – and I haven’t been healthy for a long time"
The video has helped raise over $10,000
It was his first appearance on the show in 7 years
It's very pure.
It'll come three days before the release of his new solo album 'Changes'
It's the singer's first new solo album in five years
"I was, like, dying."