" 
 :A part from the Rolling Stone article: ... and will soon be released as a single on iTunes, according to Swizz Beatz.. Probably the label planned to release the song as a single, but later the release was scrapped. That's the reason why there is not a digital date or radio date (try finding, but I doubt you will), accordingly its simply a song that people liked and achieved pretty decent chart success. Btw ""Birthday Cake"" was radio released, and that's different. Regards. —   "