Fans Rihanna got their first taste of the singer’s next album on Tuesday.  SingersRoom.com is reporting that Rihanna will be debuting her new single, “Only Girl (In The World),” this afternoon at RyanSeacrest.com.  “RiRi” recently discussed the track with Ryan Seacrest over Twitter, writing, quote, “In less than 10 dayz ima send u sumn special, and ur gonna play it OVER and OVER, like I’m the only girl in the world.”  Rihanna recently wrapped up her “Last Girl on Earth” tour, which was in support of her last release, “Rated R.”  The record was certified platinum by the Recording Industry Association of America thanks to hits like “Hard,” “Wait Your Turn,” and “Rude Boy.”