X17 XCLUSIVE - Rihanna Spotted In Los Angeles!!!

X17 has been keeping an eye on Rihanna since the incident with Chris Brown on February 8th -- we first spotted her just a few days after the alleged attack, despite reports she went home to Barbados, and we've seen her almost every day since, but have been unable to snap a single shot.

Rihanna's security detail have been hyper careful to protect the singer, particularly from our lenses. Rihanna's been chauffeured around in cars extra-dark tinted windows with drivers adept and keeping photogs of their tail.

Just barely more than 30 minutes ago, X17online photogs saw Rihanna leave the place where she's been staying and head out in a car service SUV, followed by three more cars with her entourage and bodyguards.

X17online believes she may have gone to the airport just now, to hop a private jet outta LA. But remember, Ri's 21st birthday is tomorrow so it's possible she could have gone out for a low-key celebration in a secure location.

Now on to another subject ... we just noticed what appears to be a scar on Rihanna's wrist in the above photo - our last pic of her, taken February 4th. Is it in fact a scar? Maybe a flat iron burn? Or was this another product of her seemingly unhealthy, abusive relationship with Chris Brown? ...