John Hancock High Yield Fund (the fund)
Supplement dated 6—5—12 to the current Class A, Class B and Class C shares Prospectus

In the “Fund summary” section, the information under the headings “Fees and expenses” and “Expense example” is amended and restated by the following:

Fees and expenses

This table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts on Class A shares if you and your family invest, or agree to invest in the future, at least $100,000 in the John Hancock family of funds. More information about these and other discounts is available on pages 14 to 16 of the prospectus under “Sales charge reductions and waivers” or pages 94 to 98 of the fund’s statement of additional information under “Initial Sales Charge on Class A Shares.”

Shareholder fees (%) (fees paid directly from your investment)	Class A		Class B		Class C
Maximum front-end sales charge (load) on purchases as a % of purchase price		4.50		—		—
Maximum deferred sales charge (load)  as a % of purchase or sale price, whichever is less	1.00 (on certain purchases, including those of $1 million or more)			5.00		1.00

Annual fund operating expenses (%)
(expenses that you pay each year as a percentage of the value of your investment)	Class A		Class B		Class C
Management fee1		0.50		0.50		0.50
Distribution and service (12b-1) fees		0.25		1.00		1.00
Other expenses2		0.27		0.27		0.27
Total annual fund operating expenses		1.02		1.77		1.77

1	“Management fee” has been restated to reflect the new management fee rate effective June 1, 2012.
2	“Other expenses” have been restated to reflect current transfer agency and service fees.

Expense example

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. Please see below a hypothetical example showing the expenses of a $10,000 investment in the fund for the time periods indicated (Kept column) and then assuming a redemption of all of your shares at the end of those periods (Sold column). The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expenses ($)	Class A				Class B				Class C
Shares	Sold		Kept		Sold		Kept		Sold		Kept
1 Year		549		549		680		180		280		180
3 Years		760		760		857		557		557		557
5 Years		988		988		1,159		959		959		959
10 Years		1,642		1,642		1,886		1,886		2,084		2,084

John Hancock High Yield Fund (the fund)
Supplement dated 6—5—12 to the current Class I shares Prospectus

In the “Fund summary” section, the information under the headings “Fees and expenses” and “Expense example” is amended and restated by the following:

Fees and expenses

This table describes the fees and expenses you may pay if you buy and hold shares of the fund.

Shareholder fees (%) (fees paid directly from your investment)	Class I
Maximum front-end sales charge (load) on purchases as a % of purchase price	None
Maximum deferred sales charge (load)  as a % of purchase or sale price, whichever is less	None

Annual fund operating expenses (%)
(expenses that you pay each year as a percentage of the value of your investment)	Class I
Management fee1		0.50
Other expenses2		0.17
Total annual fund operating expenses		0.67

1 “Management fee” has been restated to reflect new management fee rate effective June 1, 2012.

2 “Other expenses” have been restated to reflect current transfer agency and service fees.

Expense example

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. Please see below a hypothetical example showing the expenses of a $10,000 investment at the end of the various time frames indicated. The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expenses ($)	Class I
1 Year		68
3 Years		214
5 Years		373
10 Years		835

John Hancock High Yield Fund (the fund)
Supplement dated 6—5—12 to the current Class R6 shares Prospectus

In the “Fund summary” section, the information under the headings “Fees and expenses” and “Expense example” is amended and restated by the following:

Fees and expenses

This table describes the fees and expenses you may pay if you buy and hold shares of the fund.

Shareholder fees (%) (fees paid directly from your investment)	Class R6
Maximum front-end sales charge (load) on purchases as a % of purchase price	None
Maximum deferred sales charge (load)  as a % of purchase or sale price, whichever is less	None

Annual fund operating expenses (%)
(expenses that you pay each year as a percentage of the value of your investment)	Class R6
Management fee1		0.50
Other expense2		0.12
Total annual fund operating expenses		0.62

1	“Management fee” has been restated to reflect the new management fee rate effective June 1, 2012.
2	“Other expenses” have been estimated for the first year of operations of the fund’s Class R6 shares.

Expense example

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. Please see below a hypothetical example showing the expenses of a $10,000 investment at the end of the various time frames indicated. The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be

Expenses ($)	Class R6
1 Year		63
3 Years		199