Watch Blake Shelton and Gwen Stefani bring their love to the stage with this surprise duet

Instagram/@TheForum

Blake Shelton pleased a crowd of fans during his Doing It to Country Songs Tour stop at The Forum in Los Angeles on Feb. 17. And, one big highlight of the night came when his famous girlfriend, Gwen Stefani, joined him onstage for a surprise duet!

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The cute couple performed their co-penned song, “Go Ahead and Break My Heart,” off of Blake’s 2016 album, “If I’m Honest.”

RELATED: Could this really be what Blake Shelton is getting Gwen Stefani for Valentine’s Day?

In the Instagram clip below – posted by the venue – you can see the couple’s hot chemistry come to life, as they blend their voices together in perfect harmony.

Blake, who dons a pair of jeans and a button-up shirt, can’t seem to take his eyes off of Gwen, who is seen grooving along to the beat in her black turtle neck, metallic mini-skirt and thigh-high boots. Following the song, Blake called his ladylove “a big deal,” as she walked offstage to enjoy the rest of the show.

https://www.instagram.com/p/BQpLaHsAkAU/?taken-by=gwenandblake

Gwen’s unannounced appearance at Blake’s concert comes three days after the two revealed that they spent Valentine’s Day apart. So, they made sure to make the night count! After the show, they celebrated backstage with a bunch of friends, and Gwen’s three sons — Kingston, 10, Zuma, 8, and Apollo, 2.

And, naturally the No Doubt frontwoman snapchatted it all!

https://www.instagram.com/p/BQpHWU_A-JT/?taken-by=gwenandblake

The clip above, which a fan re-posted on Instagram, shows that the couple partied it up with plenty of JELL-O shots. They also had yummy cake with the words “A Cake for Blake” spelled out across the front. Oh yea, they had stamps made out of caricatures of their faces, too!

https://www.instagram.com/p/BQpGIglALM2/?tagged=gwenstefani

A second clip shows Gwen and Blake hanging out in their dressing room, while their pals try on the customized Blake and Gwen stamps.

RELATED: Things get hot on “The Voice” set between Blake Shelton and Gwen Stefani

This certainly isn’t the first time that Gwen dropped in on one of Blake’s shows. In fact, the couple have performed “Go Ahead and Break My Heart” onstage together many times. Fans may recall that they even debuted the song during a May 2016 episode of NBC’s “The Voice.”

Gwen was not a judge on the sing-off show last year. However, she will take up a red chair alongside Blake and coaches Adam Levine and Alicia Keys for season 12. The new season of “The Voice” begins on Feb. 27 on NBC.

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