Meanwhile, cook chicken in large nonstick skillet on medium-high heat 2 min. Add salsa, peppers and corn; stir. Bring to boil; simmer on medium-low heat 10 min. or until chicken is done, stirring occasionally.
Drain pasta. Add to chicken mixture; mix lightly. Sprinkle with cheese. Remove from heat; cover. Let stand 1 min. or until cheese is melted.