Both are small company girl group hence the comparison. Less than a year ago, GFriend had a tad better album sales than Mamamoo. But after Mamamoo's last album and now with Byul's solo we can say that they already fell behind. What happened? Was it really because of Queendom? But so far it seems like Mamamoo was the only one that really benefited on that show (AOA already released an album while Bom also released a digital single).