Sisters Slam Dunk: Season 1 (2016)

Both have similar premise of forming a girl group out of popular figures/ celebrities.

Both have Hong Jin Kyung, although instead of being the MC for Mama, she is part of the girl group in Sisters Slam Dunk

Main difference is that Sisters Slam Dunk focuses on the dream of each cast member, so the girl group dream spans across a few episodes, whereas Mama is a whole season.

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Second Season of Sister Slam Dunk.
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The show invited seven girl group members to create their very own Korean drama series by becoming accredited scriptwriters as well as acting in the series as fictional versions of themselves. And able to perform on music shows as well.