Lady Gaga Bada-Boobs ... Bada-Bum

9/9/2016 8:28 AM PDT

Lady Gaga's full of crop tops in London, which means she's letting almost everything hang out. 

Gaga left Capital London early Friday morning with a giant denim wedgie -- and cup of coffee. 

She's got a new song out, and if this is how she's gonna promote, we say ... keep plugging away, Gaga!