"Strumming your guitar doesn't count"

Taylor Swift has posted a video on Instagram where she pokes fun at good friend Ed Sheeran and his fitness regime.

She gave Sheeran the roasting while they breathlessly hiked up a hill together.

In the video, we see Swift teasing a panting Sheeran, calling out: “It’s called exercise, you ever done cardio? Strumming your guitar doesn’t count.”

“You okay, bro?” In reply, a laughing Sheeran flips her the bird.

A later, less sweaty clip catches the pair reacting to their nominations for the American Music Awards, which have been announced this week.

Sheeran and Swift have been pitted against each other in two categories as both are nominated for Artist of the Year, while their respective albums, ‘÷’ and ‘Reputation’, are both up for Best Pop/Rock Album.

“Hey Taylor, did you see the AMA nominations came out? It’s me, you and Drake,” says Ed. Both giggle as they agree that the third nominee – Drake – will probably win for his album, ‘Scorpion’.

Sheeran is also up for Favourite Male Artist, Favourite Pop/Rock Song, Favourite Adult Contemporary Artist and Favourite Tour of the Year. However, Drake and Cardi B scooped the most nominations – both have eight chances to take home trophies.

The late rapper XXXTentacion also received two nominations: one for Favourite New Artist of the Year, and the other for Favourite Soul/R&B Album.

Black-ish star Tracee Ellis Ross will return to host the American Music Awards this year, which takes place at the Microsoft Theater in Los Angeles on October 9.