Drake's son Adonis made a surprise appearance at Sunday's Billboard Music Awards, joining his father on stage as he won an artist of the decade prize.

The rapper, 34, gripped his son's shoulder throughout his speech, before hoisting him into the air and saying: "I want to dedicate this award to you."

The three-year-old burst into tears and left the stage clinging to his father's leg.

Meanwhile, The Weeknd was the night's big winner, taking home 10 awards.

Among his prizes were best artist; top Hot 100 album for After Hours; and top Hot 100 song for Blinding Lights.

The star, whose real name is Abel Tesfaye, more than doubled his career total of Billboard Music Awards, having previously received nine trophies.

Korean pop band BTS also picked up four prizes, winning best group for the second time in three years; and top social artist for the fifth consecutive year.

The band are now just one year short of equalling Justin Bieber's six-year hold on the social award from 2011- 2016.

Here are some of the other highlights and talking points from the show.

Machine Gun Kelly painted his tongue black

Best rock artist winner Machine Gun Kelly arrived at the ceremony with a rather unusual oral condition: A jet-black tongue. Had he gone overboard with the charcoal toothpaste? Developed a crippling liquorice habit? Been cursed by an evil dentist?

Sadly not. A visit to his Instagram reveals that the musician had someone paint his tongue carefully with a cotton bud.

On the red carpet, he made sure everyone noticed, sticking his tongue out for fans, sticking his tongue out for the cameras, and (hold your stomachs) touching tongues with his girlfriend, Megan Fox.

His reasons are still unclear. Is it a reference to The Rolling Stones Paint It Black? Or is he simply a big fan of giraffes? We may never know.

Pink admitted her childhood crush

Pink accepted the Icon Award from rock star Bon Jovi, and confessed she'd been obsessed with the star when she was eight - locking herself in her bedroom for a week after he got married.

"I'm very glad you found lasting love, Jon, but you broke my heart. I take this as an apology," she laughed, indicating her trophy.

To celebrate her prize, the star performed a career-spanning medley of hits, including Who Know, Get The Party Started and Just Give Me A Reason.

But the highlight was a breathtaking aerial acrobatic routine, performed with her nine-year-old daughter Willow, set to their duet Cover Me In Sunshine.

BTS debuted their new single, Butter

BTS joined the ceremony remotely from South Korea, posing on their own red carpet (!) to accept the prize for top-selling song - their first English-language single, Dynamite.

"It's really an honour to be the winner of such a significant title," said RM. "We wanted to share some fresh energy with everyone through Dynamite, and we think [with] this award, we achieved that goal."

Dressed in suave black suits, the band also gave a sensationally-choreographed performance of their new single, Butter, which broke Spotify records on its release last Friday.

Late rapper Pop Smoke's mother accepted his prizes

Pop Smoke, who died in February 2020 at the age of 20, won five prizes, including top new artist and top Billboard Hot 200 album, for he posthumously-released Shoot for the Stars, Aim for the Moon.

His mother Audrey Jackson gave an emotional speech as she collected the latter award on his behalf.

"Thank you to the fans for honouring the life and spirit of my son, so much that he continues to manifest as if he were still here in flesh," she said.

"He created music for the kid who has to sleep four in a room, the kid who has to figure out how to get to school each day so he can graduate and make his mom proud. He did this so that 14 year olds would not have to kill to prove they are somebody."

"That is the irony in this," she added. "So thank you to the Billboard Awards leadership for honouring my young warrior. Bashar Barakah Jackson, we call your name."

Priyanka Chopra and Nick Jonas turned heads

The Jonas Brothers reunited to close the ceremony, with host Nick Jonas joining brothers Joe and Kevin to perform a medley of hits including Sucker, Only Human and new single Love Me Before You Leave Me.

Nick was accompanied for the night by his wife, the actress Priyanka Chopra - and, as usual, they put together a stunning ensemble for the red carpet.

Chopra wore a custom shimmering gold gown with a thigh-high slit, designed by Dolce and Gabbana, embellished with a belt that's previously been worn by Naomi Campbell and Beyonce.

Jonas complemented her with an emerald green designer suit from Fendi - prompting Chopra to post a photo captioned with the drooling mouth emoji.

Here are some of the other eye-catching red carpet looks.