Ebstein represented Germany at the Eurovision Song Contest three times, in 1970, 1971, and 1980. Her best performance was in 1980 when she gained second place with the entry "Theater", her other two songs "Wunder gibt es immer wieder" and "Diese Welt" each came to third places. As noted by John Kennedy O'Connor in his book "The Eurovision Song Contest – The Official History", Ebstein is the most successful performer to have taken part in the contest without ever winning. She is the only singer to appear in the top three on three occasions.