Eminem has offered an apology after making a joke about Caitlyn Jenner during a freestyle rap.

The 42-year-old musician, real name Marshall Mathers, appeared on radio show Sway in the Morning on Thursday to promote his involvement in the soundtrack of new movie Southpaw.
During his time on the show, Eminem shows off his rapping skills with a six-minute freestyle segment.
The controversial rapper certainly didn't hold back during the slot, using the rap as an opportunity to voice his opinions on in the headlines celebrities including Caitlyn, Bill Crosby and Donald Trump.
Following the rap, Eminem insisted he never wanted to cause any offense with his star mentions.
'I just say s**t to say it," he said. "It's very rarely personal. If it was personal, somebody would know. It's all in fun."
During his rap, Eminem discussed his own reputation as something of a difficult person to deal with, saying: 'I invented p**ck, and that's a true statement, I see the b**ch in you, Caitlyn / Keep the pistol tucked like Bruce Jenner's d**k.'
He then paused for a second before adding: 'No disrespect though, not at all, no pun intended, that took a lot of balls."
As he approached the end of the six-minute rap, Eminem decided to once again discuss his own reputation, while also using the opportunity to make a reference to the scandal involving Bill Cosby and allegations of sexual abuse.
'I made monopoly off misogyny," he rapped. "Sodomy, how many chocolatey Jell-o pops can he possibly lace, walking atrocity / No wonder you scoff at me, it's obvious I'm as off-putting as Bill Cosby is."