The Australian siblings put their arms around each other outside London's O2 Arena and grinned as the cameras flashed away.
But although they share similar facial expressions, Kylie and Dannii's Brit Awards style was slightly different.
Dannii looked super chic as she showed off her figure in a black one shoulder dress, which featured a lace panel up the thigh.
Kylie, however, went for something a little more racy and rocked an LBD made of PVC - although she did copy Dannii's asymmetric look!
It was great to see the sisters hanging out together, as their busy schedules mean they don't always see each other as much as they would like.
While Kylie's time is occupied with The Voice UK over here, Dannii spent last year on the judging panel of The X Factor Australia.
Once the Brits was over, Kylie and Dannii headed to the official Warner after party. But while Dannii kept her dress on, Kylie switched up her style and slipped on a more comfortable green frock and slouchy cardigan.
They had a great time and Kylie even let her hair down and got on stage to perform with Nile Rodgers!
Later, she Instagrammed a video of herself strutting up the corridor of her hotel while playing 70s tune 'Le Freak' on her mobile phone. Tipsy Kylie?!
To find out what happened, who performed and who won what at the Brits, click here!
The Brits 2014 red carpet in pictures:
Copyright: WENN Lia Toby