Complex sentence: Other high-profile performances that year included a Washington Luncheon where she performed "America the Beautiful" & "When God's People Pray" and Carnegie Hall in an event called "A Night of Encouragement" to benefit victims and rescue workers from 9/11.
Split into simpler sentences: Other high-profile performances that year included a Washington Luncheon where she performed "America the Beautiful" and "When God's People Pray". She also performed in an event at Carnegie Hall called "A Night of Encouragement" to benefit victims and rescue workers from 9/11.