Will Ferrell has accepted a ''drum-off'' challenge set by Red Hot Chili Peppers' drummer Chad Smith.

The 'Anchorman' actor is known for looking strikingly similar to the famous drummer and has now agreed to a musical duel if they manage to raise enough money for charity.

Last week, Will joked about the uncanny similarity in looks between him and Chad during a 'Reddit Ask Me Anything' chat, which led to the Red Hot Chili Peppers member challenging him.

Will replied during another AMA and wrote: ''Hi, Chad. Will Ferrell here. I saw your video and I graciously accept your invitation to a drum battle. If we can raise $300,000 (£182,000) for Cancer For College I will face off with you in the greatest drum vs. cowbell showdown the world has ever seen.

''We can do it on stage at a Red Hot Chili Peppers concert or in front of a mutually convenient public library. Your call.''

He added: ''Also, would you rather fight a hundred duck sized ducks or one horse sized horse?''

Chad also joked about the comedian in the AMA, which he hosted, writing: ''I have to comment that I think Mr. Ferrell is a delusional imposter. It seems to me that he has gone off his meds and he needs to seek professional help because I am obviously more talented and handsome than he is.

''You know, his cowbell work is well-documented, but his drumset skills are nominal based on 'Step Brothers' the film.

''Other than wiping his testicles on the drums, which of course I give high marks to.''

Meanwhile, earlier this week it was confirmed that Red Hot Chili Peppers' instruments were not plugged in during their Super Bowl performance.