The 42-year-old Holby City star seriously impressed judges with his stunning American Smooth and Argentine Tango, scoring a combined total of 70.
However, when Joe and his professional partner Katya Jones went to talk to Claudia, 45, they got a little shock.
The presenter revealed: “Can I just say, you are officially the first Scot to make it to the semi-final!”
Joe seemed pleased with the fact, replying: “So I hear, I’m flying the flag!”
What’s more, should he make it to the final, he will make history there again.
The actor is currently set to lift the Glitterball trophy after appearing to go on a favourable “journey”, according to bookmakers.
During their Argentine Tango routine last night, Joe and Katya stunned Strictly Come Dancing fans with an incredibly difficult balance move.
The pair showed off their core strength as they went parallel on each other, prompting BBC viewers to completely lose it.
One posted: “Joe & Katya’s Argentine Tango. OH MY GOODNESS. That ENDING!”
Another gushed: “How did Katya lift Joe?!!! She must have thigh muscles like a f**king kangaroo.”
A third tweeted: “I am OBSESSED with Joe & Katya’s Argentine Tango! Oh my lord it’s looping on YouTube because I can’t stop watching that ending.”
Strictly Come Dancing: The Results airs tonight on BBC One at 7.15pm.