text:  Jason Walker reporting. Today is Sunday, June the 30th, and some notable people are celebrating a birthday today, including Olympic track champion Billy Mills. He's 86 years old. Oceanographer Robert Ballard turns 82 today, while singer-songwriter Glenn Sharrock of the Little River Band is 80. Boxer Mike Tyson has 58 candles on his cake. More on these stories at townhall.com.