On Thursday (Sept. 30), Ray J became a trending topic on Twitter after people just discovered that he was Brandy’s little brother.

Earlier this week, the “I Wanna Be Down” singer took to Instagram to show off her brother’s new massive tattoo that he got of her first name. “This is real love,” she captioned a screenshot of the two on Facetime. “I couldn’t have asked for a better brother. I love you @rayj #bestfriends #rayjXbrandy #rayjsis #rayjsister.”

Her post apparently shocked a lot of people who did not know that the two were siblings, prompting the “One Wish” singer to be trending on social media all day. A lot of fans were confused about how people did not know the two stars were related, seeing as though Ray J starred in “Moesha” with his sister, was featured in her visuals for “Best Friend” and has the same last name as she does.

Twitter user @NopeNotEbs tweeted, “Me blocking everyone tweeting that they *just* found out Ray J and Brandy are siblings.”

“I know ppl aren’t just finding out Ray J and Brandy are brother and Sister,” tweeted @ghostncolby4eva. “HELLO MEET THE NORWOODS! I can’t my head hurts! HELL, HE’S IN HER ‘BEST FRIEND’ VIDEO, A SONG SHE DID ABOUT HER BROTHER, HER BEST FRIEND, AKA RAY J.”

Social media user @ToiWeezy tweeted, “You know you young as hell when you just realizing Ray J and Brandy are siblings. This is why 35+ are still on this app.. to bring awareness to all you baby fetuses.”

“I think I’m too old for Twitter because users are just now finding out that Brandy and Ray J are siblings & I’ve never been more confused on how someone can not know that,” wrote @JustHer80.

Twitter user @Chuckisdope tweeted, “Ray J is trending because new niggas just found out he is Brandy’s brother? …This is how I know we slipped into a diff parallel.. Nothing around this bitch is adding up.”

“If you out here saying you didn’t know Ray J was Brandy’s little brother, then you don’t know this classic and that means you have no taste,” wrote @brookcty.

Social media user @Noel30580245 tweeted, “I can’t believe someone people didn’t know that Brandy and Ray J are blood Siblings!!!!!!! It’s no way you a Fan of Brandy and you didn’t know that Ray J is her brother!!!!!!! He is Known as Brandy little Brother in the industry.”