It's no secret that Taylor Swift is close with her family. So when her younger brother Austin graduated from college, big sis just had to be there.

Austin received his diploma from the University of Notre Dame on Sunday afternoon (May 17), which took place at Notre Dame Stadium in South Bend, Ind. And Taylor didn't just show support for him but also she shared a little bit of the graduation action on Instagram.

Taylor filmed the sea of graduates on the field as the speaker at the ceremony congratulated the class of 2015. After panning filming the graduation, she flipped the cam on herself. "Yeah Austin!," Taylor, who sported her signature red lipstick and some oversized sunnies, said followed by loud cheers.

"AUSTIN JUST GRADUATED FROM NOTRE DAME WHAT A DAY," the 1989 pop star also captioned the video.

Taylor and Austin have always had a close relationship -- unless they're hunting for eggs. But she really is there for him and even skipped out on the 2014 MTV Europe Music Awards to watch him perform in the Notre Dame's student theatre. What are big sisters for, right?

While she'd love to celebrate with her family more, she has to head back Las Vegas for the 2015 Billboard Music Awards tonight where she is scheduled to make an appearance. And not to mention, her video for "Bad Blood" will be premiering tonight during the awards show. The jetsetting "Style" singer was also in Vegas on Friday night (May 15) to perform at Rock in Rio. Taylor performed her own set as well as joined Ed Sheeran during his performance, which you can watch here.

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