Wearing a simple white T-shirt with the words 'I [Heart] Tom Felton' emblazoned across his chest, Grint professed his love for his former co-star - much to the delight of Felton.
"'I've had a crush on him for years and finally he's coming out. This is great!" Felton told reporters.
© PA Images / Matt Sayles/AP
Of course, Grint may have to fight off another Harry Potter veteran. Emma Watson recently admitted to once having a crush on Felton as well. Well, who doesn't?
Let us know what you think about the actor's declaration in the space below.
Watch the trailer for Rise of the Planet of the Apes:
