BSpearsStudio031308_01.jpgBSpearsStudio031308_03.jpgBritney Spears BSpearsSTUDIOEXCLUSIVE_X20.jpg Looks like Britney's had a busy day so far - after spending the morning with her kids, she headed over to Fox Studios for another day on the set of How I Met Your Mother!

We just snapped these pix of Britney showing up for another day on set. Hopefully today's shoot goes smoother than the day before - after all, yesterday, she was there for hours and hours and hours!

We've got more pix on the way, too - keep checking X17online for the latest!