7---3--------/7--5--3--5--7--5--3--2--3------2^3^2--------------------|
B|----------3--0----------------------------------------3-0----------------|
G|----------------------------------------------------------2-0------------|
D|--------------------------------------------------------------2----------|
A|-------------------------------------------------------------------------|
E|-------------------------------------------------------------------------|
[ Tab from: http://www.guitartabs.cc/tabs/r/rihanna/california_king_bed_tab_ver_2.html ]
e|--/7---3--------/7--5--3--2--3-------/5--3--/7--5------------------------|
B|----------3--0--------------------3--------------------------------------|
G|-------------------------------------------------------------------------|
D|-------------------------------------------------------------------------|
A|-------------------------------------------------------------------------|
E|-------------------------------------------------------------------------|
the solo is also played over the chorus after the bridge however it isn't so noticable.
second solo is different but is using the same notes an octive higher
|