The singer, 50, was at the Hasty Pudding Institute of 1770 Order Of The Golden Sphinx gala when Us Weekly asked him if he is happy for Jennifer and Alex.
He responded to the outlet on Monday, April 15, "Yes, of course I am!"
Anthony received an Order Of The Golden Sphinx award at the event. This honorary recognizes a person in the entertainment industry for their extraordinary contributions.
Marc and the songstress, 49 were married between 2004 and 2014. The former couple shares twins Max and Emme, 11. Despite the split, the pair are amicable co-parents.
They have even been spotted together along with Alex; they were spotted supporting their daughter at a dance recital in June 2018.
Jennifer and Alex, 43, who began dating in February 2017, became engaged last month. They announced the exciting news by sharing a photo from the romantic proposal on Instagram.
View this post on Instagram
Alex was previously married to his ex-wife Cynthia Scurtis (2002-2008). They shares daughters Ella, 10 and Natasha, 13, together.
For more updates, stay tuned to Frostsnow.