The famous Nationwide insurance jingle—“Nationwide is on your side”—was written by Bronx-born songwriter Steve Karmen in 1969. American football quarterback Peyton Manning did a  
commercial in September 2014 where he went through his day applying the Nationwide jingle to other things. Manning ate a chicken parm sandwich singing, “Chicken parm, you taste so good.”
 
The commercial was very successful, and “#ChickenParmYouTasteSoGood” became a Twitter hashtag on September 4, 2014. Another Nationwide commercial in September 2015 also used the “Chicken parm, used taste so good” line.
   
     
Wikipedia: Steve Karmen
Steve Karmen (born January 31, 1937) is an American composer, most famous for several jingles. Among his better known works are the New York State song, “I Love New York”, the jingle Here Comes the King, the Exxon Song (1976), and Wrigley Spearmint Gum / Carry The Big Fresh Flavor (1973). He also composed several music scores for motion pictures during the 1960s, and performed briefly as a Calypso singer, achieving some recognition in Trinidad during that time. Karmen is the recipient of 16 Clio Awards.
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1969
Nationwide Insurance / Call Nationwide, ‘Cause Nationwide Is On Your Side
 
Nationwide Video
Jingle, Featuring Peyton Manning
Peyton Manning’s a five-time MVP, Super Bowl champion and NFL record-holder. His latest title? Nationwide member. Welcome to the Nation, Peyton.
 
Nationwide Video
A Nationwide partner since 2014
Nationwide’s partnership with Peyton Manning began in 2014 – a record-setting year for the 14-time Pro-Bowl quarterback for the Denver Broncos. During the 2014 season, Peyton threw his 509th career touchdown pass to become the NFL’s all-time leader in passing touchdowns. He also became only the second quarterback to defeat all 32 NFL teams.
     
Twitter       
Yoda Matt
‏@YodaMatt
“Chicken parm you taste so good…” The new (old) @Nationwide logo and brand consolidation is a great move. http://adage.com/article/cmo-strategy/nationwide-debuts-logo-peyton-manning-ad/294792/?utm_content=buffer703e9&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer …
10:59 AM - 3 Sep 2014
 
9NEWS (Denver, CO) 
Peyton Manning sings about chicken parmesan
Allison Sylte, 1:15 p.m. MDT September 3, 2014
KUSA – It is universally acknowledged that Peyton Manning is very good at football, but another skill of his is on display in a new commercial for Nationwide.
 
The 30-second spot, which is set to debut during Thursday’s night NFL regular season opener between the Green Bay Packers and Seattle Seahawks, features the legendary quarterback singing about mundane things to the tune of Nationwide’s catchy jingle (“Nationwide is on your side”).
 
Twitter
Ryan N Shit
‏@ryannshit
#ChickenParmYouTasteSoGood
8:00 PM - 4 Sep 2014
Gilroy, CA
 
Denver (CO) Business Journal
Denver Broncos fans learn Sunday if chicken parm tastes ‘so good’
By Heather Draper
Dec 24, 2014, 11:54am MST
Nationwide Insurance wants to make sure its jingle gets stuck in the heads of Denver Broncos fans on Sunday.
 
The Columbus, Ohio-based insurance and financial services company will be giving out free chicken parm sandwiches to fans attending the Broncos home game Sunday afternoon against the Oakland Raiders.
 
If you’re not making the connection — Broncos quarterback Peyton Manning, pitchman for Nationwide, sings, “Chicken parm you taste so good,” to the “Nationwide is on your side” jingle in an ad launched in September.
   
7NEWS (Denver, CO)
Peyton Manning sings about queso, getting lost and chicken parm in new Nationwide ad
Deb Stanley
11:50 AM, Sep 10, 2015
12:34 PM, Sep 10, 2015
Last year, Denver Broncos quarterback Peyton Manning had people across the country singing, “Chicken parm you taste so good” thanks to an ad for Nationwide insurance.
 
This year, Manning is back with a new version of the jingle singing about queso, getting lost and of course, chicken parm is back, but this time, someone else steals Payton’s chicken parm line.
 
In the ad, Manning is watching a cooking show featuring—you guessed it—chicken parmesan.
 
He hums, “Never seen this one before.” Then the lady on screen sings Manning’s line, “Chicken parm you taste so good.” Manning’s response? “I like it.”
 
Denver (CO) Business Journal
Ready for more chicken parm? Nationwide debuts new Peyton Manning commercial (Video)
By Evan Weese
Sep 10, 2015, 7:07pm MDT
Are you up for more crooning by Peyton Manning? Nationwide Mutual Insurance Co. hopes so.
 
The Columbus, Ohio-based insurance company Thursday night debuted the second iteration of its playful “Jingle” television spot featuring the Denver Broncos quarterback singing its signature tune.