Twitter wasn’t laughing after Jamie Foxx cracked a joke at the expense of TV star and former Olympian Bruce Jenner.

Foxx, the host of Sunday’s iHeartRadio Music Awards, made the joke during his opening monologue: “We’ve got some groundbreaking performances here, too, tonight. Bruce Jenner will be here doing some musical performances – he’s doing a his-and-her duet all by himself.”

Twitter erupted after Foxx delivered the line, with many criticizing the joke as being “transphobic.”

Some people came to Foxx’s defense on Monday morning:

Despite the jokes, Sunday night’s ceremony saw some great performances, from Jason Aldean to Charlie Wilson to Iggy Azalea. Justin Timberlake was honored with the Innovator Award, while Taylor Swift took home three trophies, including the coveted Artist of the Year honors. Check out the full list of the night’s winners here.