As career highlights go, this has to be up there among Usher's top five - after all, this is the man who brought Justin Bieber to the world stage.

The 37-year-old singer was visiting the White House with his new wife, when an aide suddenly presented Michelle Obama with a cupcake with a candle on top. As a cake, being presented in the White House, it's a bit underwhelming - but it's a damn sight harder to be covert with a three teared cream sponge. 

Either way Usher looks beyond tickled to have the President and the First Lady to be serenading him, even if one of them is a bit flat...
 

Posting the video to his Facebook page, he said: ""So this really happened the other night…The President and First Lady sang me Happy Birthday at The White House & I got to perform for them. I couldn’t be more grateful for this moment and all of the birthday wishes from everyone. THANK YOU!!!!! #‎Blessed #‎OlderWiser."