Shawn Mendez and Camilla Cabello perform onstage at Y100's Jingle Ball 2015 presented by Capital One at BB&T Center on December 18, 2015 in Sunrise, Florida. Picture: Bang Showbiz

Shawn Mendes and his girlfriend Camila Cabello have been confirmed for a duet of "Señorita" at the MTV Video Music Awards.

The Canadian hunk and the "Havana" hitmaker - who recently made their romance Instagram official - have been confirmed to perform together at the star-studded bash on Tuesday.

A tweet on MTV's official Twitter page reads: "It's official: @shawnmendes and @camila_cabello are performing #Señorita together at this year's #VMAs! Don't miss their epic 

@vmas performance, Monday at 8pm on MTV! (sic)"

The event will be the third year in a row that Shawn - who is nominated for five awards - has performed at the ceremony, having previously sung "There's Nothing Holdin' Me Back" in 2017 and "In My Blood" last year. 

Camila - who won two Moonmen last year and is up for four at the 2019 ceremony - will be making her VMAs performance debut, as will all of the other newly-announced artists, including Lizzo, Lil Nas X, Bad Bunny, J Balvin and Rosalia.

Meanwhile, Camila, 22, recently took to Instagram to wish her boyfriend and collaborator a happy 21st birthday, and also used the sweet moment to declare her "love" for him publicly for the first time.

She wrote alongside a picture of the pair: "Happy birthday to this magic human, I love you!!!! (sic)"

Camila's post also included four love heart emojis, and came just days after she revealed the 'In My Blood' singer - whom she has been spotted packing on the PDA with on numerous occasions - "means a lot" to her.

She said: "I've known Shawn for such a long time, and it's so much fun getting to work and do things with somebody who means a lot to you."

But although she's loving spending quality time with her new beau, she "honestly hates" seeing paparazzi snapping photos of the two of them enjoying a romantic kiss, especially when she doesn't know the photos are being taken.

She added: "It makes me insanely uncomfortable to see pictures of me that I didn't know were taken. I honestly hate it. I don't want to live like a celebrity and have to look perfect every time I step out of my house. I ignore it as much as possible.

"If I'm going to look like s**t that day and cameras are in my face, I don't care because I choose being human and normal."

Meanwhile, it was previously claimed the happy couple have "really fallen for each other".

A source said: "Shawn and Camila originally were just enjoying spending time together and having a summer fling. Camila had just got out of a relationship and Shawn was in the middle of a massive tour.

"However, Shawn and Camila have really fallen for one another."