Sebastian Vettel has jokingly mocked McLaren's Jenson Button for his role in a TV advert for Head and Shoulders.
The Red Bull driver, who appears in a similar advert for the shampoo brand in his native Germany, has insisted that fun will be put to one side once the 2012 season starts.
Speaking ahead of this weekend's Australian GP, 24-year-old Vettel told The Sun: "Of course, I've had a little bit of mickey-taking from doing the advert.
"At least I never took my shirt off, I think Jenson did. But you have to be able to poke fun at yourself.
"There are lots of things that are important and you have to be very focused because you want to achieve something, so you cannot have a laugh all day long."
Vettel won the Albert Park showpiece last year after Button had achieved back-to-back victories in 2009 and 2010.
