We're not sure if Moses Chan Ho really does have problems with his hair - we've not seen any sign of it thinning. But that hasn't stopped the TVB actor from being the face of a hair-loss treatment centre for the past four years. Chan renewed his contract with Svenson Hair Centre at Olympian City on Sunday. In an attempt to prove his devotion to the brand, Chan delivered a rap performance in its honour to shoppers at the mall - actors can be good at the hard sell. Chan admitted earning more commission this time round for being the brand ambassador, saying he would take up offers to advertise just about anything. 'Anything, really. You name it,' the 39-year-old said. 'I'd probably need to work on my abs though if I were to take on an underwear campaign.' Chan might be free to take on whatever ventures come his way but his former boss, TVB executive Stephen Chan Chi-wan, who was charged with corruption and conspiracy to defraud last week, might not be so lucky. The actor expressed concern for Chan. 'I sincerely hope he'll be fine. I don't want to bother Stephen because he must have a lot on his mind right now.'