The 30-year-old rapper and the "#RichKids of Beverly Hills" star were rumored dating following their first meeting at the Tinder Plus Launch party at the Hangar 8 Santa Monica at Barker Hangar last month, reported Ace Showbiz.
An eyewitness at the party said that Montana and Wang sat near to each other in the VIP section.
At one point, Wang was seen approaching him before later hanging out for a while. "They seemed very happy and excited to be together," another source said.