The other Andie.
John Hughes wrote Pretty in Pink specifically for Molly Ringwald after the pair made Sixteen Candles together. But the studio, Paramount, wanted the producers to look for a bigger name. Executive producer and screenwriter Hughes and director Howard Deutch offered the part to Flashdance star Jennier Beals, who turned it down. Thankfully, the pair went back to their original choice. Incidentally, Andie awesome thrift store aesthetic was based on Ringwald's real life personal style.
The other Blane.