AceShowbiz - Will Arnett, 54, has been in the spotlight not just for his career but also for his romantic life. Currently dating 38-year-old fashion entrepreneur Alessandra Brawn, with whom he shares a four-year-old son named Denny, he created quite a stir when he arrived at Gigi Hadid's star-studded birthday party with another woman, instead of his significant other. Arnett was seen arriving at Le Chalet in Midtown Manhattan on a festive Friday night alongside Leah McCarthy, an Instagram influencer and close friend of Gigi's. Gigi and Bradley arrived at the party together, and she sparked engagement rumors for wearing a gold band on her finger. As rumors swirl about the significance of Gigi Hadid's ring, Arnett's appearance with McCarthy has also fueled speculation.