Nicole Scherzinger and singer/producer Ne-Yo was spotted in LA

The lead singer of Pussycat dolls Nicole Scherzinger and singer/producer Ne-Yo dine at the IVY at Los Angeles. Are they just collaborating professionally or they are making music projects n the near future. I think they both do music projects in one, they will capture a big crowed together because they are very popular singers and they are now experiencing the peak of their career.