Clive Davis' Pre-Grammy Party

Does this mean Avril Lavigne and Chad Kroeger are back on?!

The former couple reunited on the red carpet at Clive Davis' Pre-Grammy Gala and Salute to Industry Icons in Beverly Hills on Sunday – five months after ending their two-year marriage.

The estranged pair posted for pictures together at the event and also took to Instagram to document their date night.

"Grammy Party ….. Feeling great. Lovely night," the 31-year-old singer captioned one photo.

Lavigne wore a floor-length, long-sleeve dress with lace on top while her ex went with a classic black suit. The two looked cozy throughout the evening, leaning close to each other as they sat at a table with Alice Cooper, Paul Stanley and Gene Simmons.

Avril and Chad announced their separation last September, but these two don't look like they're heading for divorce.

Meanwhile, Chrissy Teigen flaunted her growing baby bump at the star-studded soiree, sporting a figure-hugging, green Galvan gown. She completed her elegant ensemble with vintage Cartier diamond earrings, glamorous waves and hubby John Legend on her arm.

0215_avril_inset2Launch GalleryGettyGwen & Blake's Cutest Photos

Another couple to turn heads at the event was Gwen Stefani and Blake Shelton!

The No Doubt singer was snapped sitting on her beau's lap, as the notoriously-private couple enjoyed onstage performances.

Stefani looked stunning in a bright-red dress as the country crooner looked dapper in all black.

Click through the gallery to see all the stars at the bash, including Harry Styles, Zayn Malik, Ciara, Russell Wilson, Tori Kelly, Elle King and many more!