The least talented person in show business?

Ringo Starr..the luckiest man alive. Peace and love...peace and love.

Kylie Minogue

James Corden

There are a lot of people to choose from with just that specifier ...
I think you'd have to add ...

> The least talented person in show business? AND THE MOST ANNOYING

but even then I cannot pick between Dwayne Johnson and Mark Wahlberg.

Maybe I'd have to pick Johnson because his head seems so small in relation to his body he looks like a giant pinhead, but Wahlberg is so annoying and apparently killed someone.

No wonder movies these days are so bad.

Jimmy Fallon

After seeing what he classes as funny at the Battlefield V reveal.

Trevor Noah.

He's so beyond unfunny it boggles the mind.

And James Corden (thanks Barry :P).

Britney Spears sister.

Alex Jones LOL