It's good to know that even A-listers like Selena Gomez prance around the house singing and dancing into their hairbrushes.
The Disney star paid tribute to her best friend Taylor Swift by recording a home video with some friends to the star's latest hit.
The one-and-a-half minute clip shows Selena and three girlfriends jumping around and waving their hair to Taylor's 'I Knew You Were Trouble'. (We may well have done the same in our PJs).The foursome then bust into a full-on routine to the track - with Justin Bieber's on/off girlfriend taking the lead at the front of the shot.
Selena and her mates flick their hair, shake their hips and sprawl out on the floor in the choreographed dance routine.
And although they're dressed in sweatpants and baggy t-shirts, the 20-year-old looks amazing as she flashes her abs.
She shared the video, tweeting: "SO Cheesy, I know but I'm glad I've got my girls..... and Gweny... :) @tayorswift13 we love you!!!"
She posted the vid on her Youtube channel and wrote: "Me and my friends just goofing around to our favorite song :) I want to give a big thanks to my friend Gweny for Choreographing this fun dance.
"My girls for being amazing and for Taylor being such an inspiration. Thanks Dan for the awesome edit! Hope you enjoy!"
Meanwhile Taylor Swift is clearly getting a lot of love from another person.
The country singer and boyfriend Harry Styles have been taking a romantic tour of Britain the past few days.
The loved-up pair's most recent stop has been to the Lake District, where they apparently went to the local pub and played a lot of scrabble.
[Related story: Taylor Swift and Harry Styles so rock n roll, go walking in the Lakes]
[Related story: Happy Birthday Taylor Swift! Here are 5 things you didn't know about her]