This past week, an early rendition of Lil Tjay and 6LACK’s “Calling My Phone” featuring a verse by SZA was leaked, a collab that didn’t make the final cut. It was unclear to fans why that version didn’t make it into the final release of Tjay’s album, Destined 2 Win. That is, until last Friday when the Grammy -award-winning star took to Twitter to explain why she decided not to submit the recorded verse to her potential collaborator. The Missouri singer is hailed as one of the most talented artists currently dominating the R&B space, but the “Kill Bill” hitmaker isn’t immune to self-doubt. Upon the revelation that the singer-songwriter had recorded a snippet for “Calling My Phone,” she admitted she “punked out” of the collab and held back the 46-second clip, which promptly received public praise upon its release.