Of all Katy Perry's music videos, it's an undeniable universal truth that the video for her 2011 single ‘Last Friday Night (T.G.I.F.)’ is the greatest. Don't even try to convince us otherwise.

Simply sign up to the Style myFT Digest -- delivered directly to your inbox. It’s zero degrees Celsius with a biting wind in Copenhagen, and Cecilie Bahnsen is swishing through the streets in a ...

When you purchase through links on our site, we may earn commission. Read our full commerce guidelines here. Hands up if you're excited to see what Cat Deeley wears on This Morning. I love getting ...