United Kingdom, April 30 -- Michelle Obama admits navigating her daughters' teenage years was a "nightmare".

The former first lady of the United States - who has Malia, 26, and Sasha, 23 with her husband Barack Obama - has opened up on the struggle the high profile parents had with keeping their daughters' personal lives out of the spotlight, and she described it as "a lot of work".

Speaking on SixiusXM's 'Let's Talk Off Camera with Kelly Ripa', she recalled: "They had to drive and they had to go to prom and they were on teams and they traveled to other schools and they had to do college searches, and they went to parties and they had drinks, and they tried out smoking and they did all the things.

"And every weekend was a nightmare, be...