His and Michelle Obama's girls, Malia and Sasha ... And in a recent photo that Michelle posted for Sasha's birthday, the younger Obama daughter looked practically unrecognizable.

Former First Lady Michelle Obama celebrated her husband, Barack Obama, on his 60th birthday Wednesday ... loving father to our girls tops them all," Mrs. Obama, 57, wrote on Twitter.

Michelle Obama celebrates her 61st birthday today on January 17 ... all while advocating for women, girls, and healthier families. Becoming is a captivating story of resilience and defying ...