Klas Frans Ahlund (born 11 April 1972) is a Swedish songwriter, record producer, and guitarist. He is the founding member of the Swedish rock band Teddybears. As a songwriter and producer, he has worked with artists such as Robyn, Sugababes, Jordin Sparks, Teddybears, Eagle-Eye Cherry, Kesha, Kylie Minogue, Bo Kaspers Orkester, Britney Spears, Melody Club, Katy Perry, Madonna, and Ghost. 　　He is the brother of musician Joakim Ahlund who is a member of the Swedish alternative rock band Caesars. Ahlund has been married to Swedish singer Paola Bruna.