The couple is said to have broken up after eight months of being together, reported the New York Post.
The news came as a shock to her fans as Delevingne, 22 recently admitted she was "in love" with the "Birth In Reverse" singer.
"I think that being in love with my girlfriend is a big part of why I'm feeling so happy with who I am these days. And for those words to come out of my mouth is actually a miracle, she said previously.