Ask Billboard is updated each week. As always, submit your questions about Billboard charts, sales and airplay, as well as general music musings, to firstname.lastname@example.org. Please include your first and last name, as well as your city, state and country, if outside the U.S.
We're featuring just one question this week, since it's such a good one that invites extensive, and fun, rummaging through Billboard's chart archives.
With Gwyneth Paltrow assisting the "Glee" cast  the past two weeks on the Billboard Hot 100  with "Forget You" and "Singing in the Rain / Umbrella," I was wondering if you could provide a list of songs by actors/actresses-turned-singers that have charted on Billboard lists.
Subang Jaya, Malaysia
Paltrow is merely the latest in a long line of such renaissance men and women. And, as Billboard's Women in Music  celebration showcased, Lea Michele and the rest of the "Glee" cast are combining music and acting like few others before. The troupe has totaled 97 Hot 100 hits in the past 18 months.
In addition to Paltrow, the "Glee" cast has previously brought a screen star to the Hot 100. "Dream On," featuring Neil Patrick Harris, reached No. 26 in June.
Here is but a partial list, in no particular order, of other celebrated actors and actresses that have impacted Billboard charts. In the spirit of Paltrow's acting resume sporting abundantly more credits than her musical output, we'll stick to those known primarily for their acting talents, as opposed to those more synonymous with both music and acting (a la Miley Cyrus , Selena Gomez  and Demi Lovato , to name a current, Disney-related few).
As always, Chart Beat readers are encouraged to round out the sampling, either in the comments section below or by e-mailing email@example.com.
Jennifer Love Hewitt
The film and TV star reached the Pop Songs chart in 1999 with "How Do I Deal" (No. 36) and in 2002 with "Barenaked" (No. 35), the latter cut the title song from her fourth album.
Bo Duke of "The Dukes of Hazzard" sped to 17 Country Songs hits between 1981 and 1987, including four No. 1s.
... Cousin Luke Duke, meanwhile, placed 11 titles on Country Songs between 1986 and 1991.
Starring in TV's "My So-Called Life" and films including "How to Make an American Quilt," "Girl, Interrupted" and "Panic Room," Leto has racked three No. 1s on Alternative Songs in his role as frontman for Thirty Seconds to Mars : "From Yesterday" (2007) and "Kings and Queens" and "This Is War" (2010).
TV's beloved "Wonder Woman" leapt to No. 10 on Jazz Albums last year with "At Last."
With a Hot 100 discography that makes 10-year-old Willow Smith  seem of a certain age, the former "Cosby Show" star climbed to No. 68 on the Hot 100 in 1993 with "That's What Little Girls Are Made Of." She knew of what she sang, reaching the chart at age 7.
Prior to her well-documented legal obstacles, the actress did anything but lie low on the Billboard 200. "Speak" arrived at No. 4 on Christmas Day 2004 and "A Little More Personal (Raw)" bowed at No. 20 exactly a year later.
The Golden Globe-nominated star topped Heatseekers Albums in 2008 with "Anywhere I Lay My Head." Her Pete Yorn  duets album "Break Up" reached the top 10 on Digital Albums and Rock Albums a year later.
Known for roles in "Ally McBeal" and, currently, "30 Rock," Krakowski made her film debut as backwoods cousin Vicki in "National Lampoon's Vacation" in 1983. (Her character's deadpan line about her French-kissing skills - "Daddy says I'm the best at it" - was (barely) edited for TV as "My science teacher says I'm the best at it"). She provided the vocals for, and scored a featured artist credit on, Jim Brickman 's No. 4 Adult Contemporary ballad "You" in 2003.
The actor moonlighted as a singer, exhibiting a sixth sense for hit-making. He made two Hot 100 visits in 1987: "Respect Yourself" (No. 5) and "Under the Boardwalk" (No. 59).
As Gywneth Paltrow, aka McKinley High substitute teacher Holly Holliday, assists the "Glee" cast on two Hot 100 hits, what other stars of screens big and small have spent time on Billboard surveys?
Our list continues:
The legendary star of the 1980 movie "Bronco Billy" turned a song from the film - "Bar Room Buddies," with Merle Haggard  - into a No. 1 on Country Songs.
While playing goofy and good-natured Joey Russo on "Blossom," the then-amply-coiffed actor singer enjoyed two Hot 100 hits in 1993, including the No. 19 "Nothin' My Love Can't Fix."
The accomplished late Irish actor, known best to younger viewers as paternal Albus Dumbledore in the first two "Harry Potter" movies, tallied four Hot 100 hits, including 1968's No. 2 "MacArthur Park."
The "Bonanza" TV star had a way with chart bullets, too, gunning to No. 1 on the Hot 100 46 years ago this week with "Ringo."
Even before his popularity exploded with roles in "Saturday Night Fever" and "Grease," Travolta, then a not-so-studious student on "Welcome Back, Kotter," reached No. 10 on the Hot 100 in 1976 with "Let Her In." He added five more chart entries through 1978.
Two years after the 1984 debut of "Miami Vice," Johnson rode the wave of the TV show's popularity to No. 5 on the Hot 100 with "Heartbeat."
The multi-talented talk show host/improv actor has resided on Billboard charts repeatedly since 2005. His 2008 set "A Long Time Coming" peaked at No. 20 on R&B/Hip-Hop Albums.
The "Fifth Element" actress (and one-time hilarious guest on "Married...With Children" as a French exchange student whom the Bundys welcomed only for the stipend that accompanied her presence) rose to No. 21 on Alternative Songs in 1994 with "Gentlemen Who Fell."
Peg Bundy herself vacated her favorite place - the living room couch - long enough to reach No. 33 on Heatseekers Albums with "Well..." in 1994, the same week that Jovovich peaked with her sole entry on Alternative Songs.
The "Wings" comedienne took flight on Adult Contemporary in 1995 with "Forever Tonight," a duet with Peter Cetera (No. 22), and on Hot Country Singles Sales two years later with "State of Mind" (No. 14).
HBO's Meadow Soprano strolled to a No. 32 peak on Heatseekers Albums in 2001 with "Here to Heaven." She has since expressed regret  over the pop album's quality. How much regret? "I hated every moment of it."
As the Black Eyed Peas  return the chorus of "(I've Had) The Time of My Life" to the top 10 in "The Time (Dirty Bit)" (13-9), fellow "Dirty Dancing" smash "She's Like the Wind" reached No. 3 on the Hot 100 for Swayze in 1988.
- Chart Beat