12/10/2011 AT 06:30 PM EST
blew out the candles on her 30th birthday cake – and then got ready for a holiday break.
"Having an amazing time at the end of my tour," she Tweeted
on Friday night. "Belated bday party!"
Spears, whose birthday
was actually the previous Friday, had one show left in Puerto Rico.
"Looks like my xmas list is complete," she Tweeted. "Thanks for all the great suggestions. Its been fun shopping with ya'll."
Aside from wrapping presents, there may be one more item on Spears's holiday list. Sources say her boyfriend Jason Trawick, 39, is ready to pop the question.