Even though it's not going to happen (most likely), I would like to see two livers sing/cover the song Mesmerizer. The colorful visuals and happy, upbeat music are a perfect fit for Nijisanji, and there are several livers that can easily fit the roles of Miku and Teto.
Extra bonus if the cover MV is in the same style as (or at least similar to) the original. It wouldn't really be the same otherwise, right?
by MayaTori