X5 and Amazon cooperated in another successful campaign in the Amazon MP3 stores in both the US and the UK, which led to a second placement at the American Top 40 Billboard List in 2009 for X5. The album â€The 99 Most Essential Mozart Masterpieces†hit the 34th spot at the list and the album beat artists like Lady GaGa, Coldplay and Lily Allen. The album also hit 2nd place at the digital Billboard list at the same time.
