Love may or may not "remember," but it's hard to forget about Selena Gomez and Justin Bieber's on-again/off-again relationship — especially not when the pop debutante's new song is all about J.B. and even features a voicemail from him.

OK, it's not a definite that the recording we hear at the beginning of "Love Will Remember" — one of Selena's new songs, which leaked today on YouTube — is the Biebs' voice, but it sure sounds like him. (Check out the video below for proof!)

"Hey babe, it's me," Justin (or Faux Justin) says as someone bangs chords on a piano. "Um, I just want to call and tell you that I love you so, so, so, so much. I just wanted to let you know that you are my princess. You are worthy of all the love in the world. You are the love of my life."

Then Selena Gomez takes over, singing:

"You said you love me. I said I loved you back. What happened to that? What happened to that? All your promises and all them plans we had … Boom, gone. Yeah, we move on. Even if we try to forget, love will remember you, and love will remember me. I know it inside my heart. Forever will forever be ours. Even if we try to forget, love will remember."

Deep words, Sel Go. Deep words.

Source: YouTube

Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!