Jerkiness, sometimes called strobing, describes the perception of individual still images in a motion picture.

Motion pictures are made from still images shown in rapid sequence. Provided there is sufficient continuity between the images and provided the sequence is shown fast enough, the central nervous system interprets the sequence as continuous motion.

In conventional cinematography, the images are filmed and displayed at 24 frames per second, at which speed jerkiness is not normally discernible.

Television screens refresh at even higher frequencies. PAL and SÉCAM television (the standards in Europe) refresh at 25 or 50 (HDTV) frames per second. NTSC television displays (the standard in North America) refresh at 29.97 frames per second.

However, some technologies cannot process or carry data fast enough for sufficiently high frame rates. For example, viewing motion pictures by Internet connection generally necessitates a greatly reduced frame rate, making jerkiness clearly apparent.

Animated cartoon films are typically made at reduced frame rates (accomplished by shooting several film frames of the individual drawings) so as to limit production costs, with the result that jerkiness tends to be apparent.

Steffan "Mr. Wiggles" Clemente is a street dancer, noted for his popping skills. He is a member of the Rock Steady Crew, The Electric Boogaloos, Tribal Click and Zulu Nation. Wiggles has been active as a dancer, actor, choreographer, dance instructor, music producer and graffiti artist.

Mr Wiggles is a South Bronx Puerto Rican. He was given the name "Dom" by an underground Graffiti writer named SEEN TC5 from his popularity in dancing at school, but later changed it to "Mr. Wiggles" after a show in Virginia Beach.

Wiggles performs as a solo artist and with the Electric Boogaloos and Rock Steady Crew. He is also committed to participating in outreach programs teaching youth about the positive aspects of hip hop culture.

Wiggles was nominated for a Drama Desk Award for the Ghettoriginal production of Jam on the Groove. He won a Bessie Award for Best Choreography for the theatrical production of So What Happens Now, a play dedicated to Buck4, a deceased Rock Steady Crew member.

Recently, Wiggles along with the members of Rock Steady Crew was acclaimed at the first VH-1 Hip Hop Honors.

Peter Gene Hernandez (born October 8, 1985), better known by his stage name Bruno Mars, is an American singer-songwriter and record producer. Raised in Honolulu, Hawaii by a family of musicians, Mars began making music at a young age. He performed in various musical venues in his hometown throughout his childhood. He graduated from high school and then moved to Los Angeles, California to pursue a musical career. Mars produced songs for other artists, joining production team The Smeezingtons.

Mars had an unsuccessful stint with Motown Records, but then signed with Atlantic Records in 2009. He became recognized as a solo artist after lending his vocals and co-writing the hooks for the songs "Nothin' on You" by B.o.B, and "Billionaire" by Travie McCoy. He also co-wrote the hits "Right Round" by Flo Rida featuring Ke$ha, and "Wavin' Flag" by K'naan. In October 2010, he released his debut album, Doo-Wops & Hooligans. Anchored by the worldwide number-one singles "Just the Way You Are" and "Grenade", the album peaked at number three on the Billboard 200. Mars was nominated for seven Grammys at the 53rd Grammy Awards, winning Best Male Pop Vocal Performance for "Just the Way You Are".