[There was a video here]
Jamie Foxx hosted this year's iHeartRadio Awards, which aired last night on NBC. In his opening monologue, he mocked Bruce Jenner by saying, "Bruce Jenner will be here doing some musical performances—he's doing a his and her duet all by himself...I'm just busting your balls, while I still can."
Get it? Because Bruce Jenner is trans and that's inherently funny?
These are jokes in the same way that iHeartRadio Awards are awards, which is to say: nominally. If your joke is, "This person is trans (or whatever) and that's self-evidently hilarious," get better jokes.