Bad boy alert! Shakira and Rihanna have fallen hard for the wrong guy on their duet, "Can't Remember To Forget You," which debuted on Monday (January 13).

The up-tempo single has Latin and Island flourishes that slightly recall Bruno Mars' "Locked Out Of Heaven". Thematically, it pays homage to Shakira's 2007 duet with Beyoncé "Beautiful Liar."

The trade lines about a guy they just can't let go. "Oh oh oh oh/ I can't remember to forget you/ I keep forgetting I should let you go/ But when you look at me, the only memory, is us kissing in the moonlight/ Oh oh oh oh/ I can't remember to forget you," they each sing on the chorus.

So, how deep do Shakira and Rihanna's feelings for this guy run? They break it down later on in the song, singing, "I rob and I kill to keep him with me/ I do anything for that boy/ I'd give my last dime to hold him tonight/ I do anything for that boy."

The song will be featured on Shakira's upcoming album, the follow-up to 2010's Sale el Sol. The Colombian-born pop star also announced Monday that the album will drop March 25.

Shakira explained the duet after debuting the track on Ryan Seacrest's radio show.

"You know, we're both from the Caribbean so I always thought we had that common ground, but this song is pretty reggae," noting it has a rock sound that she feels Rihanna also embodied. "I honestly thought it would never happen... She heard the record and she loved it and she said she was onboard and I was the happiest girl alive," she said. "To shoot the video with her has been a blast."

So, what inspired the track? Well, not Shakira's relationship with her baby daddy, Spanish soccer player Gerard Pique. "I'm going through a completely different experience right in relation to the song. The song is about that guy that just gets under your skin and you can't leave alone. I think every woman has been through that. This song is not exactly a reflection of my personal life right now," she said, calling from Barcelona where she putting the finishing touches on the album.

In addition to new music, she will return to "The Voice" on February 24 with guest mentor Miranda Lambert joining her team. "I don't know [how Blake Shelton feels]. I don't care much," she teased. "I'm excited to come back. I have this strategy designed only to take him down."