Singer Akon arrived at Anant Ambani-Radhika Merchant's pre-wedding festivities on Sunday, videos and pictures of which are being widely shared on social media. The singer, known for several hit songs including 'Smack That', 'Right Now' and Bollywood song 'Chammak Challo', will reportedly perform at the event. Earlier, Rihanna performed at the pre-wedding festivities.