What singles didn't serve the song that preceded them justice?
Leona Lewis - Better In Time (very boring - didn't make much an impact iirc).
Rihanna - Rockstar 101 (ugh

)
The Black Eyed Peas - Meet Me Halfway (success-wise, it did great. But I always personally disliked it. Boring, & there were better choices on the album - Missing You being the most obvious one).