My choice would've been "Tables" as the follow-up to "Set Fire to the Rain," but in "Rumour" - the set's next single - Columbia Records likely has a fourth smash from "21" ahead, especially considering the song's sum of 759,000 downloads sold, according to SoundScan, its exposure on "Glee" and the familiarity the song built while reaching No. 1 on Triple A in August.
I don't think it will reach #1 on the Hot 100. It's not that catchy and all. Top 5 I suppose. But you never know, people buys everything Adele even though some songs on 21 aren't that good.