Blake Shelton is "very smitten" with Gwen Stefani.
The God Gave Me You hitmaker spent the evening with his girlfriend at an event in Los Angeles and they both seemed incredibly happy as they mingled with the other guests.
A source at the party told PEOPLE magazine: "He seemed very smitten. Gwen was giddy and very flirty. They were both happy.
"They held hands throughout the evening but also mingled separately. Blake was a gentleman and checked on Gwen several times. He made sure that she had drinks."
Meanwhile, the mother of three has already introduced the 39-year-old singer to her and ex-husband Gavin Rossdale's three sons, Kingston, nine, Zuma, seven, and Apollo, 20 months.