(CNN) -- The list of those on the program for superstar pop singer Whitney Houston's funeral covers the spectrum of the entertainment world.

Actor Kevin Costner, who starred with Houston in the 1992 hit movie "The Bodyguard," will speak at the service on Saturday, according to a source with knowledge of the funeral plans.

Gospel singer Kim Burrell told CNN's Jason Carroll she will sing, "I Believe in You and Me," a selection made by the Houston family. The song was included in the soundtrack from "The Preacher's Wife," a 1996 film starring Houston.

The ceremony also will feature performances by Stevie Wonder, Alicia Keys and Aretha Franklin, who is Houston's godmother. Singer Roberta Flack will attend, but it was unclear whether she would perform.

Houston's ex-husband, Bobby Brown, has been officially invited to the funeral, according to Houston representative Kristen Foster.

Brown was openly emotional at a show in Mississippi on Saturday night following news of Houston's death, then pulled out of a performance in Nashville on Sunday night and flew to Los Angeles.

He will rejoin New Edition Thursday night for a performance in Upper Marlboro, Maryland, according to a New Edition publicist. Brown considers performing as therapy to get him through a difficult time, a source close to Brown said.

Foster said gospel singer Donnie McClurkin, actor-director Tyler Perry, producer Clive Davis, composer and music director Rickey Minor and Houston's cousin, Dionne Warwick, are among those on the program for the funeral.

Minor, who worked with Houston, told CNN that he will be involved with the funeral's music and that the New Jersey Mass Choir will perform.

Answer the following questions:
1. Who were at the funeral?
2. Whose funeral?
3. Who was she?
4. Who will be one of the speakers?
5. Who is he?
6. How he is related to her?
7. In what movie?
8. When?
9. BTW, when is the service?
10. Who was her husband?
11. Is he invited?
12. Who confirmed that?
13. What Brown was doing in Mississippi?
14. What was his reaction at the news?
15. When did that happen?
16. What happened in Nashville?
17. On what day?
18. Where he ended up then?
19. Who is Donnie McClurkin?
20. Which choir will perform there?
1. pectrum of the entertainment world
2. Whitney
3. pop singer
4. Kevin Costner
5. Actor
6. who starred with Houston
7. The Bodyguard
8. 1992
9. unknown
10. Bobby Brown
11. yes
12. Kristen Foster
13. a show
14. openly emotional
15. Saturday nigh
16. ulled out of a performance
17. Sunday
18. Los Angeles
19. gospel singer
20. New Jersey Mass Choir