Country music’s party of the year will be packed with many surprise performances, and today (March 30), additional artists have been announced to perform at the 50th Academy of Country Music Awards on April 19 in Texas.

Related: Complete List of 2015 ACM Award Nominees

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Pop star Christina Aguilera will perform a surprise duet while Nick Jonas will collaborate with Dan + Shay at the awards show.

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Additionally, Alan JacksonMartina McBrideBrad PaisleyBrooks & DunnLady AntebellumLittle Big Town and Rascal Flatts have been added to the list of performances.

Brooks & Dunn will take the stage for their first televised performance together since 2010.

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