In a new interview with Classic Rock Revisited, Journey keyboardist Jonathan Cain discusses the band's mega-hit "Don't Stop Believin'".

"It's funny, when I wrote the song and brought it into rehearsal with Neal [Schon] and Steve [Perry]… everybody kind of improved on it," says Cain. "It was kind of like Joe Pesce in Goodfellas. 'What's so funny about me?'... Everybody in that scene improved the whole thing. Marty [Martin Scorsese] wrote down everybody's response to 'What's so funny about me', and he used those responses in the script. When it came time to shoot the scene, they wanted to improv it but Marty said that their best responses were already in the script.

"It was like that with our song. As the guys improv’d around "Don't Stop Believin'", Steve Perry was the one that directed the way that went. He's the one who held off the chorus until the end. He said, 'We're not going to give that chorus away until the end'. He was so deft. He was the ultimate bandleader of the day."

Read the full interview at Classic Rock Revisited.

Def Leppard and Journey launched their co-headlining North American tour on May 21st at XL Centre in Hartford, CT. Remaining dates are listed below.

May
30 - Cincinnati, OH - U.S. Bank Arena

June
1 - Toronto, ON - Rogers Centre
2 - Pittsburgh, PA - PPG Paints Arena
5 - Raleigh, NC - PNC Arena
6 - Knoxville, TN - Thompson-Boling Arena
8 - Bristow, VA - Jiffy Lube Live
9 - Charlotte, NC - Spectrum Center
11 - Philadelphia, PA - Wells Fargo Center
13 - New York, NY - Madison Square Garden
15 - Newark, NJ - Prudential Center
16 - Baltimore, MD - Royal Farms Arena

July
1 - Atlanta, GA - SunTrust Park
3 - Noblesville, IN - Ruoff Home Mortgage Music Center
4 - Milwaukee, WI - Summerfest
6 - Memphis, TN - FedExForum
7 - North Little Rock, AR - Verizon Arena
9 - Tulsa, OK - BOK Center
11 - Louisville, KY - KFC Yum! Center
13 - Detroit, MI - Comerica Park
14 - Chicago, IL - Wrigley Field
16 - Wichita, KS - INTRUST Bank Arena
18 - Sioux Falls, SD - Denny Sanford PREMIER Center
19 - Lincoln, NE - Pinnacle Bank Arena
21 - Denver, CO - Coors Field
23 - Des Moines, IA - Wells Fargo Arena
25 - Kansas City, MO - Sprint Center
27 - Minneapolis, MN - Target Field
28 - Fargo, ND - Fargodome

August
11 - Boston, MA - Fenway Park
13 - Virginia Beach, VA - Veterans United Home Loans Amphitheater
15 - Columbia, SC - Colonial Life Arena
17 - Ft Lauderdale, FL - BB&T Center
18 - Tampa, FL - Amalie Arena
20 - Birmingham, AL - Legacy Arena @ The BJCC
22 - Columbus, OH - Schottenstein Center
24 - St. Louis, MO - Busch Stadium
25 - Nashville, TN - Bridgestone Arena
27 - New Orleans, LA - Smoothie King Center
29 - Dallas, TX - American Airlines Center
31 - San Antonio, TX - AT&T Center

September
1 - Houston, TX - Toyota Center
5 - Albuquerque, NM - Isleta Amphitheater
7 - Phoenix, AZ - Talking Stick Resort Arena
8 - Las Vegas, NV - T-Mobile Arena
21 - San Francisco, CA - AT&T Park
23 - San Diego, CA - Petco Park
25 - Salt Lake City, UT - Vivint Smart Home Arena
26 - Nampa, ID - Ford Idaho Center Arena
28 - Portland, OR - Moda Center
29 - Seattle, WA - Gorge Amphitheatre

October
1 - Vancouver, BC - Rogers Arena
4 - Sacramento, CA - Golden 1 Center
6 - Los Angeles, CA - The Forum