People must be comparing these two because they look alike because their styles of music are completely different.

For the delusional Lady Gaga bandwagon fans (probably wouldn't even like Gaga if she wasn't hot at the moment), I only leave this: Listen to Gaga sing acapella, then listen to Christina sing acapella. Gaga is no doubt talented, but when it comes to singing, Xtina's got her beat by a lonnnnng shot.