Superstar Daniel Radcliffe has revealed that he thinks Justin Bieber's friendship with retired boxer Floyd Mayweather is "boring" and can't imagine what the unlikely pair have in common.

During an interview with KISS FM for the station's breakfast show, Radcliffe admitted that he grew close to 'Victor Frankenstein' co-star James McAvoy (pictured together below) and thinks his friendship with the fellow actor is more exciting than Justin Bieber's relationship with boxer Floyd Mayweather:

"We're better than like… Bieber and Mayweather. They are like the least fun bromance in the world... You can imagine the conversation. What do they talk about?"

Back in 2010, Radcliffe told MTV that after hearing Bieber's breakthrough hit single 'Baby' he assumed the singer was female: “I only heard Justin Bieber for the first time two weeks ago. I genuinely thought it was a woman singing. I’d never heard it before. Is it big in England yet?”

Follow us: @Pressparty on Twitter / Pressparty on Facebook.