 Her customers, some of whom also became her friends, included Baby Jane Holzer, Lauren Bacall, Talitha Getty, Bianca Jagger, Mick Jagger, Inaara Aga Khan, Jutta Laing (the wife of R D Laing), Pamela, Lady Harlech, Veronique Peck, Princess Margaret, Edna O'Brien, Sharon Tate, Elizabeth Taylor, and Pete Townshend.In 1971, Porter opened a store in New York financed by Michael Butler, the producer of the hit Broadway musical "Hair".It closed after six months, but she continued to sell very successfully at high-end boutiques across the United States; Giorgio Beverly Hills sold approximately $300,000 worth of Thea Porter designs per year in the mid-1970s.