High Quality Content by WIKIPEDIA articles! "Rainy Dayz" is a song by Mary J. Blige Ja Rule, taken from Blige`s re-release of her fifth studio album No More Drama. The Song was the final single lifted from No More Drama and was released to coincide with the release of the reissue. The Irv Gotti produced duet became another hit for both, while peaking at #12 on Billboard`s Hot 100 and #17 in the UK.