Simplify the following text for a Grade 8 native English-speaking person.
Original: In 1967 , country entertainer Porter Wagoner invited Parton to join his organization , offering her the chance to become a regular on his weekly syndicated-television program The Porter Wagoner Show , and also to become a part of his road show .
Simplified: Her 1967 song `` Dumb Blonde '' was heard by country singer Porter Wagoner , and he asked Parton to be a part of his television show .