Taylor Swift has just made a big birthday shout out on Instagram to model friend Karlie Kloss but boyfriend Calvin Harris just stole the show, reports claim.

In a report on Hollywood Life, it was cited that the "Bad Blood" singer may have unintentionally flaunted her relationship with the DJ on the new picture.

The picture showed Kloss busy with kitchen duties but Harris was on front with joy evident on his face.

A photo posted by Taylor Swift (@taylorswift) on Aug 3, 2015 at 2:32pm PDT

"Some of my best memories have been with this girl, laughing in the kitchen," the singer captioned on the picture as she greeted Kloss.

The photo appeared to be a throwback picture. It was similar to the first picture of boyfriend Calvin Harris that Taylor Swift posted back on Instagram in June as reported by E! Online. The photo then showed the DJ and the model in the same outfits as well as Gigi Hadid laughing in the kitchen. Swift has also appeared for the first time on Harris' Instagram last month showing Swift working the grill.

"She cooks too," Harris captioned on the post.

Harris has also gushed about Swift's kitchen skills in a recent interview with UK's Key 103.

"It's really ridiculous but yeah, she does an incredible barbeque and she's generally an incredible cook and human being," the DJ said as told by Reveal UK.

But that's not all the compliment that the "Bad Blood" singer has gotten from her boyfriend lately. Harris has also gone on to gush about his girlfriend when he was interviewed by Kiss FM UK even saying that he does not mind the media frenzy as long as he's with Swift.

"It's going absolutely fantastic," he shared.

"It's interesting because obviously there's different things written about it every day and even if we don't do anything publicly for a while, someone will make something up," Calvin Harris also said about his relationship with girlfriend Taylor Swift. "For me it could be a lot worse and I'd still be like insanely happy with her so I'm good with it."