'Lost' Father and Son Reunite!

Who said former cast members don't ever keep in touch?

Lost star Harold Perrineau (who played Michael) makes a special cameo in Misfit Kids and Total Outcasts' (A musical duo comprised of Malcolm David Kelley [who played Walt] and As the Bell Rings star Tony Oller) new music video for Thank You.

Related: 'Lost' and 'Friday Night Lights' Alums Marry!

The former father and son pass each other on the street in the cute cameo, which starts at about 1:36.

Kelley and Oller met while filming 2010's Gigantic and began making music together, eventually forming Misfit Kids and Total Outcasts (MKTO), a pop, hip hop and R&B duo.

Check out the video to hear their catchy debut single, and click here for more info on MKTO.