Where's Mariah? This list is invalid.

OP fixed

Lmao, what an awful list.

Justin 2?

Britney deserved one. She got through a hard time very fast.

Justin had a comeback?

THIS considering most of them just out-right flopped

This is like the fifth comeback of Britney

What did Nick Jonas have to come back from? Like he is and always has been just there.

Ellen DeGeneres pretty much made a bigger comeback then all of them. She's in basically every text about LGBT people in the media / public figures. The impact.

Hilary did not come back at all

I feared this list would have Hilary based on who the OP is.

Only Brit, Patrick, Chris and Robert here. The rest is a J-16 mess/don't make sense.

For 2015 only or what? Aside from Britney, the list is very silly

This.

Every Britney comeback deserved top 1 - top 5.

Should be:
1. Circus era
2. Oops era
3. Britney era
4. ITZ era
5. Blackout era

Considering he didn't get a hit in years with his brothers and then he scored two in one year as a solo artist so yes.

Not making a mark for years isn't the same as being burned out and rising from the ashes. Look at Robert Downey Jr. That's a comeback.

If Mel Gibson returned to public favor, that would be a comeback.

Nick Jonas finally having mainstream success is not a comeback

I agree if you're trying to say that he never disappeared completely like the others, which is true. Even if he didn't have a hit.