Wait up, fans!  MAMAMOO has released another announcement for a different sub-unit!

Solar and Whee In will also be releasing their song together, "Angel," which was likewise released via their concert 'MOOSICAL,' but will be available for everyone else in a matter of days, so get super duper excited!

SEE ALSO: Zico & BLACKPINK's Jennie hang out at the 'SPOT!' in official MV