Fred Bronson reports on the chart achievments of Maurice Gibb and Aaliyah.

IN MEMORIAM: Fans all over the world are mourning the passing of Maurice Gibb, who was just 53 when he died in a Miami Beach hospital on Jan. 12. While Gibb is primarily thought of as an artist, performing with his brothers Barry and Robin in the Bee Gees, he also has significant credits as a songwriter. The Bee Gees wrote in different combinations, so he didn't participate in every song the group wrote for themselves or others. But he does leave behind a substantial body of work.

Here is a summary of the top 30 songs written by Maurice, adapted from a chapter on songs written by the Gibb brothers in the third edition of "Billboard's Hottest Hot 100 Hits":

1. "Stayin' Alive," Bee Gees (1978)
2. "Night Fever," Bee Gees (1978)
3. "Shadow Dancing," Andy Gibb (1978)
4. "How Deep Is Your Love," Bee Gees (1977)
5. "Too Much Heaven," Bee Gees (1979)
6. "Islands in the Stream," Kenny Rogers & Dolly Parton (1983)
7. "Tragedy," Bee Gees (1979)
8. "If I Can't Have You," Yvonne Elliman (1978)
9. "You Should Be Dancing," Bee Gees (1976)
10. "Jive Talkin'," Bee Gees (1975)
11. "Love So Right," Bee Gees (1976)
12. "Love You Inside Out," Bee Gees (1979)
13. "Guilty," Barbra Streisand & Barry Gibb (1981)
14. "Desire," Andy Gibb (1980)
15. "Lonely Days," Bee Gees (1971)
16. "Ghetto Supastar (That Is What You Are)," Pras Michel featuring Ol' Dirty Bastard & introducing Mya
17. "I've Gotta Get a Message to You," Bee Gees (1968)
18. "Nights on Broadway," Bee Gees (1975)
19. "Heartbreaker," Dionne Warwick (1983)
20. "Fanny (Be Tender With My Love)," Bee Gees (1976)
21. "Boogie Child," Bee Gees (1977)
22. "One," Bee Gees (1989)
23. "I Started a Joke," Bee Gees (1969)
24. "Run to Me," Bee Gees (1972)
25. "(The Lights Went Out in) Massachusetts," Bee Gees (1967)
26. "Words," Bee Gees (1968)
27. "The Woman in You," Bee Gees (1983)
28. "Alone," Bee Gees (1997)
29. "He's a Liar," Bee Gees (1981)
30. "Alive," Bee Gees (1972)

Ironically, Gibb is represented in this week's top-10 of the U.K. singles chart. Popstars boy band One True Voice falls 5-9 with their cover of "Sacred Trust," a song that originally appeared on the Bee Gees' album "This Is Where I Came In," released in 2001.

If you'd like to hear One True Voice's "Sacred Trust," tune in to "The Billboard Radio Countdown" that will be posted at on Wednesday (Jan. 22).

Maurice's twin brother, Robin, is also charting this week, but in Switzerland. Frequent "Chart Beat Bonus" contributor Jochen Tierbach reports that Robin's single "Please" from his album "Magnet" debuts on the singles chart in Switzerland this week. As part of the Bee Gees, Robin appeared on the very first singles chart published in Switzerland in January 1968, exactly 35 years ago this week. The Bee Gees were on that very first chart with "(The Lights Went Out in) Massachusetts," making Robin the artist with the longest chart span in the history of the Swiss charts. Tierbach was E-mailing this trivia to me on Sunday, Jan. 12 when he learned of Maurice Gibb's passing.

IN MEMORIAM II: It's another bittersweet triumph for the late singer Aaliyah, as her song "Miss You" (Blackground) moves to the top of Billboard's Hot R&B/Hip-Hop Singles & Tracks chart. It's the first posthumous No. 1 on this tally for the artist, who perished in a plane crash in the Bahamas on Aug. 25, 2001.

"Miss You" is Aaliyah's third No. 1 song on the R&B chart. She was only 15 when her first chart entry, "Back & Forth," had a three-week reign in 1994. In 1996, she spent two weeks on top with "If Your Girl Only Knew."

On the Hot 100, "Miss You" advances 14-11. That makes it the highest-ranking posthumous title for Aaliyah on this chart. If "Miss You" moves up even one place next week, the song will be Aaliyah's first top-10 appearance since "Try Again" went to No. 1 the week of June 17, 2000.