Lady Gaga Wears Custom Alaia on the Oscars 2015 Red Carpet

Lady Gaga, Oscars, 2015 Academy Awards

In true Gaga fashion, the performer dropped jaws in a major white number on Sunday's red carpet.

Lady Gaga is no stranger to, uh, major outfits (hello, Grammys meat dress). And at the 2015 Academy Awards held at the Dolby Theatre on Sunday (Feb. 22) in Hollywood, the recently engaged singer pulled out all the stops yet again with a custom, voluminous white gown by Paris-based designer Azzedine Alaia. 

Lady Gaga has sold over 27 million albums worldwide and earned herself a total of six Grammy awards, picking up her most recent this year for best traditional pop vocal album for her collaboration with Tony Bennett, Cheek to Cheek.

Photos: See all of Hollywood's brightest stars in the 2015 Oscars Red Carpet photo gallery

Alaia has also designed the costumes that Gaga will wear while performing a special Sound of Music tribute at this year's Oscars.

Be sure to watch the 2015 Oscars, hosted by Neil Patrick Harris tonight at 5:30 p.m. PT/8:30 p.m. ET on ABC.