Britney Spears didn't take the weekend off from work -- she spent it filming her new music video for "Hold It Against Me" ... and tweeted a pic from the set!
"Such an incredible experience. I think this will be one of the best videos I have ever done," Spears wrote on her Twitter, adding "Day 2 is a wrap! #HIAM video coming soon!"
Britney also included a photo, taken off a video screen, which shows a closeup of her face surrounded by microphones (left).
The singer appears to be wearing a shimmery red top -- which may be the gorgeous red gown Indian designers Shane and Falguni Peacock created as one of the video's looks (right).