Lynch is the first oldest child of Mark and Stormie Lynch. He has three brothers, Rocky, Ross, and Ryland, and one sister, Rydel. Lynch is the second cousin of Derek and Julianne Hough.
Him and his band (R5) have written a number of songs, such as: Can't Get Enough of You, Never, Without You, and Say You'll Stay as well as doing covers on popular songs and doing small concerts. R5 consists of Riker, his brothers Ross and Rocky, and his sister Rydel plus one of their closest friends, Ratliff (surname). Their youngest brother, Ryland, is their Manager. His brother Ross Lynch currently stars on Disney Channel's Austin & Ally.
His band had a small EP on iTunes called Ready Set Rock which includes most of their original songs (Ready Set Rock, Can't Get Enough Of You, Without You, Never), yet was removed when Ross got a role on Austin & Ally. They released an EP called Loud in February 2013 which has 4 of their songs (Loud, I Want You Bad, Fallin' For You, Here Comes Forever). R5 also released their album Louder which contains repeated songs from their EP Loud, and other songs (Pass Me By, Forget About You, Ain't No Way We're Goin' Home, If I Can't Be With You, Love Me Like That, One Last Dance, Cali Girls). The Louder Deluxe Edition includes 5 bonus tracks (Fallin' For You (Acoustic), I Want You Bad (Acoustic), Wishing I Was 23, Crazy Stupid Love, Christmas Is Coming).
Riker went on the Glee tour as one of the Warblers chosen to go.
In Glee Live the songs he dances, sings or is featured in are:
- Teenage Dream
- Silly Love Songs
- Raise Your Glass
- Safety Dance
- Ain't No Way
- Don't Rain on My Parade
- Born This Way
Riker started singing and acting at an early age of three and started dancing at the age of nine. He and his sister Rydel soon became dance partners and competed in dance competitions together. Soon after, his brothers one by one started following in his footsteps in dancing, singing and playing instruments.
Riker's band was only acoustic before they moved to Los Angeles, meeting their new best friend Ellington Ratliff. Once learning that he could play the drums, they added their final member of the band and using his last name, R5 was completed. Riker's younger brother Rocky (who taught himself how to play the guitar) was the one to teach him how to play Bass.
In 2015 he was a contestant on Dancing With The Stars. He came in 2nd alongside his partner, Allison Holker.
He has aired on television in:
- The Fresh Beat Band (Principle Dancer)
He has been in the music videos for:
- Say You'll Stay - R5
- Without You - R5
- Love Me - R5 (Justin Bieber Cover)
- Never - R5
- Can't Get Enough of You - R5
- Marry You - R5 (Bruno Mars Cover)
- Ordinary Girl - Hannah Montana
- Loud - R5
- Pass Me By - R5
- Love Me Again - R5 (John Newman Cover)
- Counting Stars - R5 (OneRepublic Cover)
- Girls - R5 (The 1975 Cover)
- (I Can't) Forget About You - R5
- Heart Made Up On You - R5
- Things Are Looking Up - R5
- Let's Not Be Alone Tonight - R5
- All Night - R5
Riker is known for his small crush on Dianna Agron. During the glee tour, he and Dianna Agron tweeted some times, allowing fans to pair both characters together. Curt Mega, Dominic Barnes, and he are known on twitter for having twitter conversations about New Direction girls, usually Quinn, and hashtagging them "Jeff tweet" or "Nick tweet." y
In 2022, he was chosen to represent his home state of Colorado in the inaugural American Song Contest. Performing the song "Feel the Love", he qualified from the third qualifying heat in second place. In the first semifinal, despite finishing last with the national juries, he earned enough public votes to advance to the final. He finished the competition as runner-up to Oklahoma's AleXa.
|2008||Sunday School Musical||Crossroads Choir Member|
|2009||So You Think You Can Dance||Himself/Guest Dancer
(Member of The Rage Boyz Crew)
|("Two of 16 Voted Off")|
|2010||Zeke and Luther||Goin' zoomin Dancer||("Goin' Zoomin'")|
|Suicide Dolls||Hip Kid|
|Glee||Jeff||2010 - 2012 (12 Episodes)|
|2011||Passport to Explore||Himself||2011 - 2012 ("Vancouver", "Portland", "Seattle")|
|Glee: The 3D Concert Movie||Jeff|
|A Day as Holly's Kids||Johnny||short|
|2012||Lost Angeles||Sketch Ball|
|2013||Buffering||Martin Riggs||("It's All Part of the Plan")|
|2013||Wedding Band||Just'a Krush Member||"Get Down on It" (Season 1, Episode 5)|
|2015||Dancing With The Stars||Contestant/Himself||Season 20|
|2015||World Choreography Awards||Himself|
|2015||R5: All Day, All Night||Himself|
|2017||Colossal Youth||Greg Randle||Post-Production|
|2022||American Song Contest||Contestant (representing Colorado with "Feel the Love")||Runner-up|