Ap Rocky

Rihanna has given birth to a baby boy, her second child with rapper A$AP Rocky, a report said on Aug. 21.

The music megastar and beauty entrepreneur became a mother for the second time at the start of month, entertainment outlet TMZ said.

"Sources with direct knowledge tell us the baby arrived Aug. 3 in Los Angeles," TMZ said.

Superstar Rihanna revealed her baby bump in Harlem over the weekend, dropping the news that she is pregnant with her first child.

The entertainment and fashion mogul behind the hits "Diamonds" and "Umbrella" strolled hand in hand with boyfriend A$AP Rocky, sporting a long pink jacket buttoned only at the top, paired with a long bejeweled necklace over her bare belly.

A study lead by the University of Edinburgh researchers suggests that listening to music while running can be helpful in combating mental fatigue and might prove as a key to improving people's performance too.