singers who are also boxers?
['Roy Jones Jr. 5 of 6.', 'Mike Tyson. 4 of 6. ... ', 'Ernie Terrell and the Heavyweights. 3 of 6. ... ', 'Jack Johnson and His Band. 2 of 6. ... ', 'Oscar De La Hoya. 1 of 6. Oscar De La Hoya croons to knock the ladies out with his cover of the Bee Gees\' "Run to Me." ... ']