Jennifer Lopez and Casper Smart
11/21/2011 at 11:10 AM EST
It was a special night for Jennifer Lopez
at Sunday's American Music Awards
First she turned heads
– and brought audience members packed in Los Angeles's Nokia Theatre L.A. Live to their feet – as she shook and shimmied through a medley of her hits in her first of two performances.
Then she picked up honors for favorite artist in the Latin music category.
And there was someone special by her side to help celebrate the night: her rumored beau
, L.A.-based dancer Casper Smart, who sealed Lopez's big night with a kiss at her AMA after-party, held at Greystone Manor.
Dazzling in a feathered white and silver sequined cocktail dress, Lopez, 42, met up with Smart inside the Fiat-sponsored AMA after-party (she does endorsements for the Italian car manufacturer) at the bar with a friendly embrace.
The two partied in the VIP area, and by about midnight, they were both dancing to Snoop Dogg, Too Short and Three 6 Mafia. When Smart sat back down, Lopez, still shimmying to Rihanna
, Jay-Z and Kanye West
, rubbed his head and leaned down to share a quick kiss.
Lopez and Smart also mingled with fellow guests, such as Daughtry, Jenny McCarthy
and L.A. Reid, before heading out at about 12:30 a.m.
"I just love what I do, and I just have this attitude toward life like you just have to attack it. You just have to go for it," Lopez told reporters on the red carpet prior.
"Sometimes it can be overwhelming ... but every time I get tired or feel overwhelmed, I just go, 'This is good. I'm alive. It's okay. I'm lucky.' "