On this day: January 10

Published On: Jan 09 2013 12:35:09 PM CST   Updated On: Jan 10 2015 01:00:00 AM CST

Caesar crosses the Rubicon, the London Underground opens, RCA introduces the 45 rpm single, The Beatles' first U.S. record is released, and Wendy's asks "Where's the Beef?," all on this day.

OTD January 10 - Pat Benatar
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Stephen Lovekin/Getty Images

1953: Singer Pat Benatar, a four-time Grammy winner whose hits include the 1980s songs "Hit Me with Your Best Shot," "Love Is a Battlefield," "We Belong" and "Invincible," is born in Brooklyn, New York. Benatar is seen here in 2012.

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