Britney Spears did some afternoon shopping in LA on Friday, and Saturday she stepped out to get a drink with her son Jayden. She spent her weekend with her boys after news was released last week about her brand-new single "Hold It Against Me." We got a look at the cover art for the track, which you seemed to love. The song will finally be out this evening at midnight on iTunes, where it will be exclusively available for one week. Britney got fans even more excited by tweeting on Saturday, "Who's ready for 1/11/11?" It will be the first hint of what Britney has been working on in the studio for her new album expected to be out in March.