The 25-year-old was invited by the North London club to watch their side draw 2-2 with Everton on Sunday with her Spurs-supporting father.
After arriving at the ground wearing a red dress, the singer has admitted that she bought a Tottenham jumper and scarf in order to blend in.
Jessie J wrote on Twitter: "I was invited by Spurs to see the game today as my Dad is a huge fan! I wore a RED dress #fail! (No other reason other than I love red) so when I arrive to the chairmans dinner...I was like a voice chair in a room full of people wearing grey and navy!
"So I bought a hoody and a scarf to look less *red* meanwhile my Dad is telling everyone "I should of told her when is saw her in red" lmao!"
England legend Paul Gascoigne was also in attendance to watch the Premier League encounter.