FILE - In this Nov. 30, 2007 file photo, British singer Rod Stewart, right, and his wife Penny Lancaster arrive for the Emeralds & Ivy Ball, to raise money for Cancer Research UK, at Old Billingsgate Market in London. Lancaster gave birth to the couple's second son, Aiden, born Wednesday, Feb. 16, 2011.  (AP Photo/Sang Tan, File)

Photo by: SANG TAN

FILE - In this Nov. 30, 2007 file photo, British singer Rod Stewart, right, and his wife Penny Lancaster arrive for the Emeralds & Ivy Ball, to raise money for Cancer Research UK, at Old Billingsgate Market in London. Lancaster gave birth to the couple's second son, Aiden, born Wednesday, Feb. 16, 2011. (AP Photo/Sang Tan, File)