JJ Krissanapoom Pibulsonggram, or Jaylerr, is an actor, model, executive, and musician. After graduating from Prince Royal's College in Chiang Mai, Krissanapoom enrolled in the Faculty of Communication Arts at Rangsit University. In 2020, he received a bachelor's degree in film at the Faculty of Social Communication Innovation College from Srinakharinwirot University. Jaylerr is the grandson of former Thai prime minister Field Marshal Plaek Phibunsongkhram.

Jaylerr entered the entertainment industry when he modelled at the 20th-anniversary celebration of the "Central Chiang Mai" department store while still studying in grade ten. There, he met the well-known director Chookiat Sakveerakul who persuaded him to audition for his 2013 film "Grean Fictions”, subsequently debuting as an actor in a main role. Jaylerr worked under Chookiat's Studio Commuan before landing his role in "Diary of Tootsies" and ending his contract to sign with Nadao Bangkok in 2015.