Lady GaGa performing at the House of Blues. Chicago, Illinois - 24.03.09

The Just Dance hitmaker will officially land the number one spot with Poker Face on Thursday (02Apr09), according to chart experts.

The track ends rapper Flo Rida's reign at the top of the U.S. charts.

The last artist to take her first two hits to the top of the Hot 100 was Christina Aguilera in 1999 and 2000.

Lady GaGa's older news:

* Gaga Dances To Second U.K. Number One
* Lady Gaga Never Doubted Superstar Destiny
* Pet Shop Boys Go Gaga At Brit Awards
* Gaga Misses TRL
* Lady Gaga Shrugs Off Madonna Likeness

Source: WENN