What is the background song played when Tony stark wears his Mark 42 suit the first time in the first part of Iron Man?

In "Iron Man 3," when Tony Stark first dons the Mark 42 suit, the background song playing is “Blue (Da Ba Dee)” by Eiffel 65. This upbeat and catchy song underscores the excitement and high-tech vibe of Stark’s latest suit as it comes to life. The choice of music adds a playful tone to the scene, reflecting Stark's personality and the film's overall energetic atmosphere.