Read the text and determine if the sentence is true:

Serart is a collaboration album by two international Armenian musicians: Serj Tankian ("Ser-"), lead singer of System of a Down, and folk multi-instrumentalist Arto Tuncboyacyan ("-art"). It was the first release on Tankian's own label, Serjical Strike Records.

Sentence: Serj Tankian was a singer in the band System of a Down.
Yes