2016 Billboard Music Awards: All the Highlights

— -- The 2016 Billboard Music Awards was all about The Weeknd, who grabbed eight trophies, including Top Hot 100 Artist, Top R&B Artist, Top R&B Song for "The Hills," and Top R&B Album for Beauty Behind the Madness. Adele took home five awards, including Top Female Artist, Top 200 Album for 25, and the big one, Top Artist.

The Weeknd dedicated his Top 100 Artist award to Prince, who died suddenly last month. In The Weeknd's acceptance speech, he noted that the legendary artist was an inspiration to him.

Adele, who is currently on tour and couldn't make it to the telecast, accepted her award via pre-taped messages. "It's lovely to be in everyone's company," Adele said in her video acceptance speech for Top Artist, adding, "I'm about to go on stage!"

The show also featured the video premiere for Adele's new single "Send My Love (To Your New Lover)." The psychedelic clip for the third release from her album "25" shows the singer draped in a flowing, floral gown set against a black background with multiple Adeles appearing in kaleidoscopic form.

Britney Spears opened the show, taking the stage in a red top hat and jacket before stripping down to a more revealing outfit and performing a medley of hits that included "Work B****," "Womanizer," "Breathe on Me," "Slave 4 U," "Toxic" and a chorus of Joan Jett's "I Love Rock 'N Roll" for good measure.

Kesha, whose appearance on the show was up in the air at one point, ended up paying tribute to Bob Dylan, backed by Ben Folds. They performed the Dylan classic "It Ain't Me Babe."

Pink gave a breathtaking performance, soaring high in the air suspended by ropes and surrounded by flames as she belted out "Just Like Fire" from the upcoming film "Alice through the Looking Glass."

Céline Dion, who was the recipient of this year's Icon Award, delivered a powerful performance of "The Show Must Go On," backed by violinist Lindsay Sterling.

Afterwards, her son, Rene-Charles Angelil surprised her by walking on stage to make the presentation. After thanking her fans and crew, Dion made a special dedication -- in French -- to her late husband Rene Angelil, who lost his long battle with throat cancer in January. Choking back tears, Dion closed her speech by declaring, "The show must go on."

The Go-Go's, who made history during the 1980s as the first and only all-female band that wrote their own songs and played their own instruments, reunited on stage and performed their hit, "We Got the Beat."

The highlight of the evening was Madonna and Stevie Wonder teaming up for a touching tribute to Prince. After Madonna performed Prince's "Nothing Compares 2 U," made famous by Sinead O'Connor, Wonder joined her for a duet on Prince's classic "Purple Rain." The musical performances were introduced by The Roots' drummer Questlove, who noted the music legend affected all of us, "no matter what kind of music we make, no matter how long we made it, no matter our race, our color or our creed or sexual orientation," adding that his departure from the land of music "was an earthquake."

The night's lineup also included:

• Shawn Mendez, "Stitches"
• Fifth Harmony featuring Dolla $ign, “Work from Home”
• Meghan Trainor, "No"
• Justin Bieber, "Company" and "Sorry"
• Nick Jonas and Tove Lo, "Close"
• Demi Lovato, "Cool for the Summer"
• DNCE, "Cake by the Ocean"
• Lukas Graham, "7 Years"
• Ariana Grande, "Dangerous and "Into You"
• Gwen Stefani and Blake Shelton, "Go Ahead and Break My Heart"