Rock Star Supernova was a reality television-formed supergroup consisting of drummer Tommy Lee (Mötley Crüe), bassist Jason Newsted (ex-Metallica), guitarist Gilby Clarke (ex-Guns N' Roses) and singer Lukas Rossi. The band was formed during the second season of the Rock Star Reality TV series which was called .
Lukas Rossi may have participated in other bands, but they aren't well known enough to be listed in comparison to Motley Crue.
This is confusing because it used the word "may" and this is correct because we don't actually know the answer but because "may" is used it keeps it from being a neither statement.