Renee Zellweger posed in her little blue dress outside of The Late Show in NYC last night. She's been making the rounds nonstop promoting My One and Only, which opens in limited release today. Renee sat down with Dave to chat about being an aunt, as well as her Mexican restaurant in East Hampton. She even brought out a guacamole-filled piñata, which was promptly attacked with baseball bats. Renee continued to play mum about her rumored relationship with Bradley Cooper, but most of you would rather not hear about it anyways.

To see more photos and the video of Renee's interview just