Barack Obama who ruled United States of America from January 20, 2009 to January 20, 2017, wished his first lady a happy 55th birthday with a sweet throwback photograph from their young days together.

Former US President Barack Obama celebrated his dearest wife and the former first lady’s 55th birthday on Thursday sending her a sweet message with a throwback picture that must be precious for Michelle.

Mr. Obama wrote, “I knew it way back then and I’m absolutely convinced of it today — you’re one of a kind, @MichelleObama. Happy Birthday!”

The former US ruler and his wife Michelle both are in strong relationship for years, while they married in 1992 after met in the late 1980s, when the best-selling author has been working at a Chicago law firm and Obama was a summer associate at the firm.

They first welcomed older daughter Malia, 20, who is a student at Harvard and then a younger daughter Sasha, 17, is a senior in high school.

In her memoir, Michelle shared some information about their relationship in her memoir that how they both had struggled to make their relationship and life happy like other couples do, even though they had seek counseling at what time it needed.

The mother of Malia, and Sasha also opened up how the 44th president of the United States proposed her in 1991.

Mr. Obama also had shared his three questions previous year for knowing whether you have discovered “the one” with his former communications director, Dan Pfeiffer.

Pfeiffer penned Obama in a quotation from his book, “Here’s the advice I give everyone about marriage — is she someone you find interesting? Yes We Still Can: Politics in the Age of Obama, Twitter and Trump.”

On other side, other two questions were uncomplicated.

Former US president said, “Does she make you laugh? And I don’t know if you want kids, but if you do, do you think she will be a good mom?”

However, renowned pop star Beyoncé also joined birthday wishers club posting her own birthday tribute to former first lady, shared a picture of Michelle as a kid with text reading “Bow Down” emblazoned across the picture.

Michelle has been published her memoir “Becoming,” in November that has been dominating book sales in 2018, as well as the book achieved top place in year-end top 100 best-selling books by the USA TODAY.