heidi-sutc-460.jpgGetty Images for Entertainment Industry Foundation

Single and ready to mingle? We're not sure if that's the case just yet, but Heidi Klum's boobs were certainly out and about at the Hollywood Stands Up To Cancer event in Culver City on Tuesday evening!

The 40-year-old German model, who recently broke up with boyfriend Martin Kristen, attended the event and wore a brown Michael Kors dress with a plunging neckline and a slit up to her thigh. Hot!

No word on whether Heidi chatted up any new potential suitors, but we're very curious to see who she dates next...