Rihanna is going to be one busy girl on Grammy Day, which is Feb. 12. Not only will she perform with Coldplay at the ceremony, but she will also grace the stage at a charity event at the House of Blues in Los Angeles. Proceeds from the show will benefit the Children’s Orthopaedic Center and The Mark Taper–Johnny Mercer Artists Program at Children’s Hospital Los Angeles.

Rolling Stone reports that RiRi, her 'We Found Love' collaborator Calvin Harris, along with Deadmau5 and Sebastian Ingrosso of the production team Swedish House Mafia, are all performing at the event as well. Tickets are pricey at $1,000 a pop, but this is for charity, so it's all good. You can cop tickets online at Live Nation.

As we previously reported, Rihanna will also headline a benefit concert for Brad Pitt's foundation in New Orleans on March 10. The event will help raise monies for families who lost their homes during Hurricane Katrina in 2005.

With all these good deeds Rihanna is doing lately, we hope she walks away a winner at the Grammy Awards telecast. The R&B/pop songbird garnered four nominations, including Album of the Year for 'Loud.'

CBS will air the 54th annual Grammy Awards live from Los Angeles on Feb. 12 at 8PM ET.