Wikipedia explains that, "Stefani was born March 28, 1986, the eldest child of Joseph Germanotta, an Italian American internet entrepreneur, and Cynthia Bissett... At the age of 11, Germanotta attended Convent of the Sacred Heart, a private Roman Catholic school on Manhattan's Upper East Side."
Gaga's performance in Madison Square Garden in February 2011 was made into an HBO special.
Her music video, Alejandro, in 2010 stirred up religious controversy and condemnation that it is a sacrilege because the scenes in which the singer displays a cross and wears a red nun's habit alternate with scenes in which she engages in simulated sexual acts and suggestive poses and motions.
Eric Ross summed up the responses to the video in the SF Pop Music Examiner:
Lady GaGa released her new music video for Alejandro today and it’s the most controversial one yet. In addition to Lady GaGa wearing a machine gun bra, her backup singers are dressed as Nazis wearing high heels, fishnets, and speedos. This may sound like typical GaGa style, but so far, that’s all tame stuff.Here is the video. Warning: do not watch this if you are prudish.
The real controversy comes with the numerous religious images throughout her video. Some of them, like the upside down cross, are even sacrilegious. There are also images of GaGa in a red nun outfit eating a cross. This video is sure to upset the religious right, and it’s destined to make headlines around the world.
Watching “Alejandro” may bring back memories of when Madonna released her “Like a Prayer” video. Back in 1989, Pepsi decided to use “Like a Prayer” in one of their commercials before the single was officially released. When Madonna’s music video finally aired, it included her dancing in front of burning crosses, witnessing a murder, kissing a black saint, and experiencing stigmata. Religious groups became extremely upset and threatened to boycott Pepsi, resulting in the company pulling the commercial.
(reposted from 2011)