Everyone had been buzzing about what Michelle Obama will wear to the presidential inauguration on Jan. 20. But the focus suddenly turned to her husband's choice of clothes — or lack thereof — on Dec. 21, when President-elect Barack Obama emerged from the family's ocean-front vacation home in Kailua, Hawaii, shirtless and wearing only a pair of black board shorts.

Obama, 47, had good reason to show off his super-toned physique. After all, he hit the Semper Fit military athletic center at least three days in a row while in Kailua.

For more on how the President-elect got to be so buff, pick up the latest issue of Life & Style, on newsstands now!

Photo Credit: AP