Va-va-voom! Beyonce graces the cover of the February issue of GQ – and a leaked photo that hit the Web on Wednesday indicates it’s going to be one hot issue. The 31-year-old singer/actress – who gave birth to her daughter Blue Ivy a year ago – shows major skin in the men’s mag, posing in a cut-off football shirt and animal-print panties. Proving she is still bootylicious, she struck a sultry pose as well, holding her hair up while casting a seductive look. Though Jay-Z’s wife has been famous since her Destiny’s Child days, this could possibly be her sexiest magazine cover ever. The megastar has stripped down for magazines on other occasions, but perhaps none more revealing than this, which is promoting her much-touted Super Bowl performance in February. Some other memorable covers featuring the “Dreamgirls” star include her wearing a cleavage-exposing…