US rapper Eminem promotes album during ESPN's 'Saturday Night Football'

US rapper Eminem was a surprise guest on ESPN's Saturday Night Football half=time show.

The 40-year-old, who looked uncomfortable throughout the broadcast, was questioned by announcer Brent Musburger, whom Eminem described as a "legend".

The rapper, who stood in between Musburger and his co-announcer Kirk Herbstreit during the chat, spoke about his upcoming album before saying, "I'm really uncomfortable right now," according to the Daily Mail.

Eminem also spoke about his new single 'Berzerk'.