An awesome punk/rock band. Sum 41 is very talented and when performing live, they sound almost the exact same as they are on the album. (A lot of times, even better.). Deryck Whibley can write extremely powerful lyrics and his talent really shines in Screaming Bloody Murder, the 5th studio album that they released. Their fans are called "skumf*ks" and only the best fans can call themselves that. The band is currently made up of 4 members:

Deryck Whibley- lead singer, lead guitarist (Bizzy D)
Steve Jocz- drummer, vocals (Stevo 32)
Jason McCaslin- bassist, vocals (Cone)
Tom Thacker- guitarist, vocals (BrownTom)

*Tom Thacker replaced Dave Baksh- the original member of the band before his departure in 2006 to focus on his band Brown Brigade.

The band started out as a NOFX cover band called Kaspir with just Steve and Deryck. After that, they changed the name to Sum 41. Sum 41 was formed in 1996, 41 days into summer. (Hence the name.)

Before Dave left the band, Sum 41 had an alter ego band- Pain for Pleasure. They would dress like a 1980's heavy metal hair band by wearing leather jackets and crazy wigs. Stevo is the lead singer while Deryck plays the drums.

Sum 41 has released 5 studio albums so far.
Guy 1: Hey, did you see the Sum 41 concert last night?
Guy 2: Yeah, it was fucking awesome!
by AnonymousGirl11 January 27, 2013
A band originating in Canada. Their music has progressed throughout the years, beginning with somewhat immature lyrics, evolving into more meaningful music. Most of the definitions on here are from 2005, before their music progressed in maturity.
A) Sum 41 has come a long way from when they started.

B) Tell me about it!
by Dankfin January 8, 2012
if Sum 41 was a punk band, they wouldn't have a song that goes "Rock! It's what we're all about! It's what we live for! C'mon shout it out!" stupidos
Nevertheless am i dressed for the ocasion
It's number 32 now here's the situation
if the beat moves ya feet then
dont change the station
pack ya bagz cuz we leavin on a perminent vacation
well im a disaster
a microphone master
its time to rock ya ghetto-blaster
its not about the cars, money, hotels, or resorts
bout sweatin all the bitches in the biker shorts
and im dave brownsound can ya see me runnin late
imma make ya girlie feel great
by Screw u bitch August 9, 2004
A band whose 1st album came out in 2001. It is their most known album. Due to it being pop-punk, many musically inclined people disliked the band and swore them off right there as talentless, despite "Pain for Pleasure" a metal song, likely an Iron Maiden tribute.

They have 5 albums. In them, Sum 41 has a different sound in each album. Their 2nd album is pop-punk with a little alt metal. Their 3rd album has 2 punk songs amidst melodic hardcore, alt metal, metal, and 2 quiet songs, the band cited Metallica as an influence for this album. (They have also played a full length Master of Puppets cover.) The bands 4th album went back to their roots, stripping the metal influence. This album is pop-punk. Their 5th album is closer to a sequel to their third, with much louder vocals and much better instrumental parts. It is an alt metal/alt rock album with punk influence. Their third and fifth albums also have many shifts from soft to loud within songs. They have songs that include all 4 members on vocals, and utilize a lot of vocal harmony.

Basically, this band isn't groundbreaking most of the time, but they go into a lot of music and pull it off well. Most people write them off due to their first album or think they are copying Metallica, Oasis, Green Day, Blink-182, Linkin Park, etc.
by Schadaniel January 12, 2013
An awesome band.. STFU all of you who think they're posers.. they're pretty good and it doesn't matter what genre they are.

PS Cone and Deryck are hot haha

PPS People who call people posers are the real posers
"I dont wanna waste my time, becoming another casuality in society..." -- Fat Lip
by alz October 5, 2004
A kick ass band that never once called themselves punk (they even said they werent in Cross The T's And Gouge Your I's DVD)so to all the f$ckers who keep baggin on them because they are not "real punk" can stfu now.
Sum 41 is actually like alternative/rock
They have 4 badass albums out now: "Half Hour Of Power", "All Killer NO Filler", "Does This Look Infected?", and "Chuck". And I can tell you that they all kick ass.
"...and we're all to blame
we've gone too far, from pride to shame
we're trying so hard, we're dying in vain
we're hopelessly blissful and blind, to all we are
we want it all
by xxxxxxxxxxxxxxxxxxxxxxxxx October 14, 2004
a) Fourty-One Days Until the Summer (Hence the band's name)
b) originally, punk-pop band from ajax, ontario, canada, (although now their sound ranges from metal to rap-rock).

Consists of Deryck (Bizzy D):vocals, guitar; Dave (Brownsound): Guitar, vocals; Jason (Cone): Bass and sometimes vocals; Steve (Stevo-32): Drums (and vocals/rapping on pain for pleasure or fat lip/what we're all about) (respectively)

Sum has released four full length albums and two dvds (as far as I'm aware; not counting what they did in Dem. Rep. Of Congo)

Albums: Chuck: 2004/ Does This Look Infected?/2002 All Killer No Filler/2001 Half Hour Of Power/2000
DVDS: Cross Your T's And Gauge Your Eyes, Does This Look Infected DVD.

Anyone who calls Sum 41 is a poser needs to either review what a poser is, stop having an anneurism, or go listen to some of their music. and those who call people who call sum41 posers posers are hypocrites. sorry guys, but everyone has opinion. just dont go around calling every band a poser. unless it's simple plan. thanks for your time.
a) Damnit, I'm Tired Of School. Oh, well; it's only sum 41.
b) Random: Going to the Sum 41 concert tonight?
Other: Yeah, man, it's gonna be dope.
(reference from video of "The Hell Song")
by falseintentionss December 31, 2005