ELVIS Presley's estate is suing Arista Music in Germany for $9m in unpaid royalties dating back to 2002 for ringtones, downloads and apps. It also alleges the label, then called RCA, exploited Presley in a $5.4m 1973 buyout of his catalogue. It claims that, as a result of the contract, Presley went on to receive $10 a year for worldwide rights to each of more than 1,000 recordings, and wants a share of future revenue. Arista's owner Sony did not comment. Under the 1973 agreement, RCA bought the rights to Presley's back catalogue - with the $5.4m fee split evenly between the singer and his manager, Colonel Tom Parker, according to legal papers. The Presley estate says the singer's annual payment for each song of about $10 is "conspicuously disproportionate" to the revenue RCA made from master recordings. bbc