Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

Screening Of NBC's "The Voice" Season 4 - Arrivals

HOLLYWOOD, CA - MARCH 20: Singer Christina Aguilera arrives at the screening of NBC's "The Voice" Season 4 at TCL Chinese Theatre on March 20, 2013 in Hollywood, California. (Photo by Kevin Winter/Getty Images)