Hello, Mr Bowie. Goodbye, Mr Trump.

I'd say Albert Einstein and replace Donald Trump with him, but then I think A.E. had his run and wouldn't want to come back, not in the same form.

Bring back Laika, the Soviet space dog (minus any trauma), replacing former-Lost Prophets singer Ian Watkins.

Replace Woody Allen with that little kid from Poltergeist who died.

Hmm. I think I'd trade Kanye West for Michael Jackson.

I would trade Mee-gain Markle for Freddie Mercury.

Can we swap Whitney Houston and Bobby Brown?

I probably would bring back Hedy Lamarr and feed Trump to turkeys?

Steve McQueen, I'd get rid of Tom cruise because he's a Scientologist/douche and will never be anywhere near as cool as my boy Steve

I would bring Back George Carlin (Cause he would LOVE what's happening now) & replace him with Larry The Cable guy, cause, why does he exist? :)

Carl Sagan if he counts. the last good white pop science communicator. trade him for Bill Nye's crusty ass

ehhh... I really don't like having this power... but for the sake of an answer... Freddie Mercury for Lele Pons, please.