Too often than not, singers pay tribute to other singers, both past and present, in order to show their admiration for their work. Here are eight of the best (and worst) performances we'll always remember:
1. Tributes: Madonna/Prince
2. Tributes: Jennifer Hudson/Whitney Houston
Only a voice as powerful as Jennifer Hudson's could accurately pay homage to the late Whitney Houston. Back in 2012, at the singer's memorial service, Hudson belted out Houston's classic, "I Will Always Love You."
4. Tributes: Janet/Michael Jackson
In 2009, Janet Jackson honored her late brother Michael Jackson with an epic VMAs performance we'll never forget.
5. Tributes: Christina Aguilera/Aretha Franklin
In 2011, Christina Aguilera took the stage alongside Jennifer Hudson, Martina McBride, Florence Welch and Yolanda Adams to honor Aretha Franklin's stellar career. The singers sang some of Franklin's top hits for the Grammys performance, as a "get well" card for the legend who had just fallen ill.
7. Tributes: Miguel/David Bowie
To honor the late David Bowie, Miguel belted out an acoustic cover of "Space Oddity" at a Los Angeles club.