Since the Obamas left the White House, they’ve been living their best lives. While daughters Malia and Sasha Obama complete their higher education, former President Barack Obama and former the political spotlight. They’ve shared images themselves island vacations and recently, Michelle Obama was spotted in Las Vegas singing along to Christina Aguilera jams at the singer’s concert. 

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According to TMZ, it all went down at Planet Hollywood at the Zappos Theater on Wednesday (March 4) night. While Christina was making her way through the audience,  while belting out “Lady Marmalade.” One them saw the former First Lady and decided to stand in front her and give a little twerk before moving on.

Michelle took the encounter in stride and kept the party going as she gave a few air slaps and continued grooving in her seat long after he’d left. As fun a time as she had, She regularly makes appearances as a guest speaker and was in Sin City for the Ultimate Stware Connections Conference. Check out Michelle’s fun time at Christina Aguilera’s concert below.