While MAMAMOO is currently one of the most popular girl groups in K-Pop, they were doubted before they even debuted. In a recent episode of Boss in the Mirror, MAMAMOO’s Solar revealed that other agencies thought that they would fail.

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Before they debuted, the CEO of MAMAMOO’s agency (RBW) presented the members to other agencies.

| Kemi/YouTube

However, the staff members of these other agencies told the CEO of RBW that MAMAMOO would fail as a group.

| Kemi/YouTube

Solar then shared that the members were a bit short and didn’t look like idols at the time.

| Kemi/YouTube

Due to this, people at RBW would always tell MAMAMOO that they needed to do well on stage and that they should focus on their performances if they wanted to succeed in the idol industry.

| Kemi/YouTube

This fueled the MAMAMOO members and is what caused them to practice so much.

| Kemi/YouTube 

Here’s the full video below!