The 25-year-old singer told how she was just minutes from going on stage at the Brit Awards in 2009 when she realised that she had forgotten the essential item.
Help was at hand in the form of the British girl group, which features Cheryl Cole, and Nicola Roberts.
Being interviewed by Roberts for MTV, Gaga explained, 'Last time we met was at the Brits. Actually, you might not even know this but you've given me a present once before. When we were backstage at the Brits - when I was very new - I was performing with the Pet Shop Boys and I needed pantyhose.
'I was knocking on Girls Aloud's door and you gave them to me. So thank you for my hose.'