The superstar, 45, has been linked romantically to Packer since June (15), when they were photographed holding hands on vacation in Capri, Italy.

They spent the next few weeks cruising around Europe and even enjoyed a trip to Israel, before Carey had to head back to Sin City to resume her residency at Caesars Palace.

The new couple was forced to spend the past two weeks apart as Packer travelled for work, but they reunited in Las Vegas earlier this week (begs20Jul15), when they were spotted enjoying a romantic dinner, and he was in the audience as she hit the stage on Wednesday night.

Before belting out her ballad Hero, the singer made it known absence really had made her heart grow fonder, telling fans, "I got a new heart tonight. James is in the house. Thank you for my heart. I dedicate this next song to you."

Packer has reportedly been showering Carey with gifts in the past few days, sending 1,000 roses to her home and presenting her with a new diamond-studded butterfly necklace.

Carey split from husband Nick Cannon last year (14).