"It's very challenging when you have babies, and you're completely in debt," he said.

After her second worldwide tour, The Monster Ball, which ran from 2009 to 2011, Lady Gaga found herself $3 million in debt. .

1 singles.' And they said, 'Well, you're $3 million in debt.'".

Still, Lady Gaga pressed on and was able to pull herself out of the red.

Today, she's worth an estimated $150 million, according to Forbes. .