Migrate really was supposed to be the second single, part of the reason she performed it on a late night show. The problem was it was a contractural agreement issue between Jive and Def Jam having to do with T-Pain's royalties to the song. Mariah wanted it to be released still but to prevent difficulty the label thought Bye Bye was the better choice based on its ballad-esque similarity to WBT and critiques claiming it would easily be Mariah's 19th #1
The entire Butterfly era post My All was mess but Breakdown was supposed to be officially released with full single treatment but was struck down my Tommy for obvious reasons...
Yours was supposed to feature JT and be released instead of Bringing on the Heartbreak but BC of conflicting schedules it never happened.
I Need You was meant to be the third single not Teenage Love Affair but Urban radios informed J Records it wouldn't be radio friendly on that format which was the one J was more focused on at the time since No One had already given her Pop success.
Kisses Don't Lie was planned to be the fourth single from A Girl Like Me but Def Jam went with Break It Off for Sean Paul instead and wanted Rih to start recording GGGB. Funny thing is they didn't even bother to do a video for it
(although it still went Top 10).
Sell Me Candy and Let Me Get That were against each other to be a single after Hate That I Love You but after Rihanna recorded Take A Bow they felt a re-release would be better to introduce the song immediately after seeing the success if Irreplaceable.
Those are the only ones I have real tea on right now