The Gran Torino director is said to have caught Tempah's performance at last weekend's Coachella festival in California and enjoyed the set so much that he requested to meet the 'Pass Out' rapper backstage.
"Tinie was blown away by Clint. To have such a megastar watch him play and then meet him is unreal. It's certainly a surreal time for him at the moment," a source told The Sun.
Tempah is currently out in the States preparing to release his debut album Disc-Overy, while promoting his single 'Written In The Stars', which currently sits at number 14 on the US Hot 100 chart.
Alexis Jordan recently expressed an interest in wanting to collaborate with Tempah in the near future.
Watch the video for Tinie Tempah's 'Written In The Stars' below: