Here's a look at 'Today in Rock History' featuring: Marcus Mumford is 33. He's the lead singer of Mumford & Sons. Pat Angerer is 33, University of Iowa stud linebacker and Orange Bowl winner, NFL Indianapolis Colt, and Quad Citizen. Justin Timberlake is 39. Johnny Rotten is 64. Nolan Ryan is 73. Chicago Cubs legend, Ernie Banks was born on this day in 1931 and Jackie Robinson was born today in 1919. Today in 1865, the 13th Amendment to the United States Constitution Abolished Slavery in America.