The starlet attended the Glasgow venue last night to watch husband James Righton (30) perform with his band The Klaxons.
Frontman James and his band, who are known for hits Golden Skans and Echoes, are currently touring the UK, and Keira has already been spotted at previous dates.
King Tuts tweeted, "Not only did we have the amazing @klaxons in @kingtuts last night!
"We also had the lovely Keira Knightley! Top night! :)"
Did anyone meet Keira or grab a picture with the starlet?
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