Deal brokered by EMI exec Big Jon Platt.

R&B artist Beyonce has signed a long-term worldwide co-publishing deal with EMI Music Publishing. Mathew Knowles, the singer's father and manager, first revealed the pact to Sept. 7 at Billboard's R&B/Hip-Hop Conference, taking place in Atlanta. EMI will represent Beyonce's latest release, "B'Day," and all future music projects.

"It is very rare that one has an opportunity to sign an artist of Beyonce's caliber. She is a multi-dimensional star whose writing is as prolific as her performing. I look forward to working on this and future projects with one of the world's truly great musical talents," said EMI Music Publishing chairman and co-CEO, Martin Bandier.

The deal, brokered by EMI's executive VP and head of urban music, "Big" Jon Platt, brings the former Destiny's Child leader under the same publishing roof as her beau Jay-Z. Prior to this agreement Beyonce's solo work was handled through Windswept Publishing.

"Undoubtedly Beyonce is the most influential female artist in our business today," said Platt, "and at EMI Music Publishing, we are honored to manage her songs and help her take those hits to new heights."

Beyonce's second solo album, "B'Day," hit stores Sept. 4, the same day she turned 25. The first single from the album -- Deja Vu featuring Jay-Z -- currently sits at No. 22 on the Billboard Hot 100 chart.