Women Over 50

First Lady Michelle Obama is celebrating her 50th birthday today. She's been getting a lot of attention from the press as she reaches that milestone. The big birthday bash is slated for tomorrow at the White House. Now, in the world of music who are some of your favorite ladies over 50?

Here's what we played today:

• "Down in Mississippi" - Mavis Staples
• "Lines Around Your Eyes" - Lucinda Williams
• "Space Oddity" - Natalie Merchant
• "Angel from Montgomery" - Bonnie Raitt