In 2008, Hebel joined Billy Joel on his summer tour, culminating with two shows that were the final concerts at Shea Stadium before its demolition.

Hebel was also in the studio recording with Streisand in May 2016 on her album Encore: Movie Partners Sing Broadway, released in August of that year.

The tour initially visited nine locations in North America, then was extended to include four additional stops, for a total of 14 shows in 13 cities.

Beginning May 12, 2011 and continuing through December of that year, they undertook an 81-city tour encompassing appearances in North America, Europe and South Africa.

Hebel joined Groban to promote the album with the All That Echoes World Tour in 2013 performing in North America, Europe and Australia.

[10][11] On February 12, 2012, Hebel performed on stage with Bruce Springsteen and the E-Street Band to open the 54th Annual Grammy Awards live from Los Angeles, California on CBS.

[14][15][16] In 2005 Hebel originated and helped create the violin part in Tom Kitt and Brian Yorkey's American rock musical Next to Normal.

[17][18] Speaking of Hebel, Kitt describes "Christian provided the depth and virtuosity that I needed and helped me define what for me, would become one of the most important elements in the music".

[19] In 2009 Hebel originated and helped create the violin role in Green Day's punk rock Broadway show American Idiot.

[24] Hebel originated and helped create the violin and concertmaster role in Craig Lucas and Adam Guettel's 2005 Broadway musical The Light in the Piazza.

[29][30][31][32][33] Hebel and actress Rachael Harris were married on April 30, 2015 and they lived and worked in Los Angeles, California and New York City with their two sons Henry (b.