Alyssa Raghu shed tears of joy Sunday night when she was advanced to Hollywood for the next round of American Idol. The 15 year old songbird auditioned on the premiere episode on season 16 of the ABC’s singing competition before judges Katy Perry, Lionel Ritchie and Luke Bryan. Born to Guyanese parents, Alyssa is a student at Lake Nona High School in Orlando Florida and also plays the guitar. According to www.wftv.com, Alyssa’s ‘American Idol’ journey…