Marcelito "Mars" Castro Pomoy (born September 22, 1984) is a Filipino singer, known for his ability to sing in both baritone and mezzo-soprano.

Pomoy was born in Imus, Cavite and raised in Bislig, Surigao del Sur, both of which are in the Philippines.

This paved the way for him to join different contests in both the amateur and professional leagues, including Talentadong Pinoy.

Pomoy makes regular appearances on ASAP, and his first studio album, entitled Duet Yourself, was released in 2011 under Star Records.

[7] He has built small houses for some residents and helps organize donation drives for education and other sectors.