This sound is from AJ Rafael Soundboard

Rafael started a Myspace account in 2003 and uploaded a song he wrote for a girl he met on the Internet. He has organized charity concerts for Autism Speaks since 2006 and started Music Speaks, an annual charity concert that informs people about autism.
See also: Isa Briones, 12:51 (Krissy & Ericka song), Hayley Kiyoko, AJ Lamas, Krissy & Ericka, and List of Berklee College of Music alumni.