The Boss and Popsicle covers Billionaire by Travie McCoy & Bruno Mars and Down by Jay Sean. Mika‘s acoustic version of Billionaire fits perfectly with his amazing vocal ability. In addition to that his English pronunciation is good too.
But their version of Down by Jay Sean is my favourite. Injun‘s beat boxing harmonizing with Mika‘s flawless voice and Hyumin‘s on the guitar. Love it! Specially, even if the sky is ‘farring‘ down, Mika‘s own style of falling down. So cute!