Son, Baylee Littrell, was recently diagnosed with Kawasaki disease.
Kevin called Brian up in his US history class and he asked him to join the Backstreet Boys in 1993, at the age of 18.
Released a Contemporary Christian CD in the spring of 2006.
Their new album (Millennium) broke the record for most sales in the
first week - previously held by Garth Brooks - by selling over 1 million
copies in the USA alone.
He had opened heart surgery in 1998 to correct a Ventricular Septal Defect in his heart. The defect was located in the lower left and right pumping chambers of his heart.