Thanks Mashamasha for the explanation;
that session of Tamori Club is called Soramimi Hour (空耳アワー), tv audience (including celebrity) are asked to send to the program the songs (usually English songs) which they misheard japanese words in the lyrics. It is a very long long established session. Masha has his Soramimi Hour in ANN before. Actually this time MJ's "Cramp my style"> Fukuyama Masaharu has been played in ANN's Soramimi Hour few months ago. I think why masha agreed to appear this time besides his relationship with Tamori, it may also due to the fact the person who sent Cramp my style to Tamori Club is Saeki Chizu, a famous skincare specialist in japan, who is a big fans of masha and masha is the reason why she chooses amuse as her agency co.
Still a very weird appearance.
Better quality here;