The one and only Ms. Patti LaBelle is joining the cast of “Greenleaf” that centers on an African-American family’s powerful megachurch in Memphis. The 73-year-old legendary vocalist will play Maxine Patterson.

David and Tamela Mann recently sat down with CBN's "Studio 5" to discuss their love and upcoming marriage book. The key to their success, they say, is keeping the Lord first in all things. Watch their interview.