Lady Gaga had been forced to postpone four shows after an injury left her unable to walk.

The singer is suffering from severe joint inflammation.

4 shows from Chicago to Ontario will be delayed.

Gaga explained all to her fans on twitter; saying she injured herself in a performance a while back, but her condition worsened.

After her show in Montreal on Monday, she couldn't walk.

Matt Damon is taking on a cause with a comedic approach.

The invention that has saved more lives than any other in history is the toilet.

That's why he's plans to help raise awareness about sanitaion and clean water.

He says 2.5 billion people don't have it.

Damon is co-founder of the group water.org.

It's a Hollywood baby boom!

Alec Baldwin and his wife Hilaria Thomas have announced they are in fact expecting their first child together.

The couple told extra that the pregnancy was a total surprise and that Alec found out when he heard Hilaria screaming with joy.

Their baby will have some good playdates to choose from!