Ty Dolla $ign recently revealed that he sang background vocals on Kanye West’s tender lullaby song, ‘Only One.’ In an interview with Billboard, the singer-songwriter details how he and West collaborated in the studio.

“One day my homie Ricky Anderson [Kanye's cousin] hit me up and was like, 'Kanye wants you to come work with him in Mexico,' so I came out there [and] we did like nine songs in one day; one of them happened to be 'Only One,' he tells Billboard.

The ‘Paranoid’ singer was also surprised by West releasing the song on New Year’s Day. He's even amazed by the reaction to the ballad.

“They called me before and told me. Atlantic [Records] called and asked me to clear it and everything,” he recalls. “I didn't know what song 'Only One' was at first, then the other homie called me and played me the song [to refresh my memory]. It came out, everybody's going crazy. They playing it on the radio, every city, every state, every country, so s---, I'm happy!”

In addition, Ty and West also recorded a track with Rihanna and Paul McCartney.

“Me, Rihanna, 'Ye and Paul got a song about to drop as well,” he said. “I heard they shot the video recently. I don't know what the final title is, but I know it's crazy so just be looking out for [it].”

So what did Ty Dolla $ign learn from Yeezy during their time in the studio?

“Just take my time and really examine what's dope and what's not,” he said. “He reminds me of myself a lot. [He has] all the homies around, everybody being like 'yes' or 'no' [about a song]. Also, be real critical about what you do, [and] not just let anything go out there.”

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