​Calendar: Week of March 28

Here's a look at the week ahead on our "Sunday Morning" Calendar:

On Monday, the singer-songwriter known as Lady Gaga celebrates her 30th birthday.

Tuesday sees the annual International Women of Courage Award ceremony at the State Department in Washington.

Wednesday is World Bipolar Day, pegged to the birthday of the troubled artist Vincent Van Gogh. It's a day dedicated to increasing awareness and ending the social stigma of bipolar disorders.

On Thursday night, the late pop singer David Bowie will be honored with a tribute concert at New York's Carnegie Hall.

Friday is April Fools Day, an annual occasion for all manner of practical jokes . . . no foolin'!

And Saturday is the annual Park Day, sponsored by the Civil War Trust, a day for volunteers to help clean up and preserve America's Civil War battlefields, cemeteries and shrines.