In the 1990s, the group enjoyed their biggest success. Their 1994 album "Over the Hump" sold more than 2.25 million copies in Germany alone, and 4.5 million copies throughout Europe. In 1995, to promote the album, they played a concert to a Vienna audience of 250,000. In the same year they filled the Westfalenhalle, Dortmund, nine times in a row, a feat no other musician has since accomplished. In 1996 they headlined their first Stadium Tour, filling some of Europe's largest venues. They played in Beijing, China in front of 20,000 people. In 1998 they bought a castle, Schloss Gymnich, on the Erft near Cologne, Germany. About the same time, Adam Kelly, son of Papa Kelly’s younger brother Henry, started performing with his cousins in The Kelly Family. Success continued until they started to disagree on a professional basis at the beginning of the year 2000. In 2002 Papa Kelly died from yet another stroke. That same year the family competed in the German Eurovision Song Contest with the song of Maite Kelly "I wanna be loved" and placed fourth.